What if Deku had Big Fist Quirk but better and stronger than Itsuka Kendo

 

The afternoon sun beat down on the neighborhood playground, casting long, golden shadows across the sandbox and the faded rubber swings. It was a humid Tuesday in Musutafu, the kind of day that smelled of hot asphalt and blooming cherry blossoms. To four-year-old Izuku Midoriya, the world was a vast, brightly colored tapestry of heroes and villains, a game waiting to be played.

 

He sat in the sand, clutching a limited-edition All Might action figure, his large green eyes wide with innocent wonder. A few feet away, Katsuki Bakugo was already holding court. Katsuki had recently manifested his Quirk—a dazzling, loud, and inherently aggressive power that allowed him to sweat nitroglycerin and ignite it. Little pops and cracks echoed from Katsuki’s small palms, drawing the awe of the other children.

 

Izuku watched him with a mixture of admiration and a hollow, aching anticipation. When will my Quirk come? he wondered, looking down at his small, unremarkable hands. His mother, Inko, had a mild telekinetic Quirk. His father could breathe fire. By all medical logic, Izuku was due for something. But as the months ticked by, the extra joint in his pinky toe remained a terrifying possibility in the back of his mother's mind. Izuku, however, refused to doubt. He was going to be a hero. He just needed the tools.

 

The idyllic afternoon shattered with a low, guttural growl.

 

It started at the edge of the park, near the rusted chain-link fence. A stray dog—a massive, matted mix of a mastiff and something wilder—had wandered into the play area. It was sickly thin, its ribs jutting out against its mangy fur, but its eyes were completely feral. Foamy saliva dripped from its exposed, yellowed canines. It wasn't just a stray; it was a desperate, aggressive animal, likely driven mad by hunger or disease.

 

The children froze. The lively chatter died instantly, replaced by a suffocating silence.

 

A small boy, no older than Izuku, had been chasing a runaway red rubber ball near the fence. He stopped, looking up at the towering beast. The boy let out a terrified whimper and took a step back.

 

The movement triggered the dog’s prey drive. It barked—a thunderous, violent sound—and lunged.

 

Panic erupted. Kids screamed, scrambling toward the slide or running for the street. Even Katsuki, for all his bravado, froze for a fraction of a second, his crimson eyes wide with genuine shock. He raised his hands, a few meager sparks popping from his palms, but he was too far away.

 

Izuku didn't think. He didn't weigh the odds. He didn't consider his lack of a Quirk or his small stature. His body simply moved.

 

It was an instinct carved into the very marrow of his bones—the fundamental, undeniable urge to place himself between danger and the innocent.

 

He sprinted forward, his small legs kicking up plumes of sand. "Leave him alone!" Izuku screamed, his voice pitching high with childhood terror, but his trajectory never wavered. He threw himself in front of the crying boy, raising his small, bare arms to shield him, tightly shutting his eyes as he braced for the agonizing bite of the dog’s jaws.

 

I have to protect him, Izuku thought, his heart hammering against his ribs like a trapped bird. I have to be strong!

 

In that infinitesimal fraction of a second, something inside Izuku Midoriya fundamentally shifted.

 

It didn't feel like fire. It didn't feel like telekinesis. It felt like gravity.

 

A sudden, terrifying rush of heat exploded in his forearms. It was an agonizing, tearing sensation, as if the bones beneath his skin were suddenly boiling. The blood roaring in his ears was drowned out by the sickening crack-crack-crack of rapid cell division and bone expansion.

 

Izuku opened his eyes just as a shadow fell over him. It wasn't the shadow of the dog. It was his own.

 

His hands—his small, fragile, four-year-old hands—were erupting. The skin stretched and darkened to a healthy, calloused tan. His fingers elongated, growing thicker than tree trunks. His knuckles swelled to the size of bowling balls. The sheer mass of his hands multiplied exponentially, expanding outward until each fist was larger than Izuku’s entire body.

 

But it wasn't just size. It was density.

 

The sudden, catastrophic shift in weight was impossible for a four-year-old boy's skeletal structure to support. The center of gravity violently shifted forward. Izuku let out a yelp as the monstrous, boulder-sized hands plummeted toward the earth, dragging him down with them.

 

SMASH!

 

The impact was deafening. It sounded like a meteor striking the playground.

 

When Izuku’s enlarged palms slammed into the concrete pathway separating the sand from the grass, the ground didn't just crack; it pulverized. A shockwave of displaced air rippled outward, kicking up a miniature sandstorm. The concrete shattered into a spiderweb of fissures, cratering downward by a full foot beneath the sheer, crushing density of the boy's newfound Quirk.

 

The stray dog, which had been mid-lunge, hit an invisible wall of wind pressure generated by the slam. The beast yelped in terror, its feral aggression evaporating instantly. It scrambled backward, tucking its tail between its legs, and fled through a hole in the fence, vanishing down the alleyway.

 

Silence descended on the park once more, save for the settling of dust and the soft, terrified sobs of the boy behind Izuku.

 

Izuku lay pinned against the ground, his arms stretched out in front of him. He couldn't lift them. They were unimaginably heavy, as if his arms ended in solid blocks of lead. He stared at the colossal appendages in absolute bewilderment. The skin was thick, almost armored in its durability, with prominent, pulsing blue veins snaking across the backs of his hands.

 

"Deku..."

 

Izuku slowly turned his head. Katsuki Bakugo was standing a few feet away, his jaw slack, his red eyes locked onto the massive crater and the colossal hands that had caused it. The explosive sparks that normally danced across Katsuki's palms had completely died out.

 

For Katsuki, Quirks were about flash, about power, about undeniable superiority. He had thought his explosions were the pinnacle of strength. But looking at the sheer, unadulterated devastation Izuku had caused by simply falling over... Katsuki’s worldview fractured.

 

He didn't see a pebble in his path. He didn't see a weakling to be bullied.

 

Katsuki looked at Izuku, panting and confused, and saw a mountain. A titan. An immovable object that had just fundamentally challenged Katsuki’s unstoppable force.

 

Izuku blinked, tears of strain and shock pricking the corners of his eyes. "Kacchan... my arms... they're so heavy."

 

Katsuki swallowed hard, his fists clenching at his sides. The characteristic scowl returned to his face, but it wasn't fueled by arrogance this time; it was fueled by raw, competitive fire.

 

"You finally got it, huh, Deku?" Katsuki muttered, a fierce, feral grin slowly spreading across his face. "About damn time. But don't think this makes you better than me!"

 

 

 

Ten Years Later.

 

The rhythmic, deafening THUD... THUD... THUD... echoed through the reinforced concrete walls of the municipal gym’s private basement room. It was a space specifically rented out for individuals with destructive mutation and emitter Quirks, lined with shock-absorbent padding and heavy-duty steel plates.

 

Izuku Midoriya, now fourteen years old, stood in the center of the room. He was a stark contrast to the small, timid boy he had once been.

 

While his face still held that same round, freckled innocence, and his unruly mop of green hair remained untamable, his physique told a story of brutal, relentless discipline. Izuku wore a sleeveless black compression shirt that clung to a heavily muscled torso. But it was his arms that drew immediate, jarring attention.

 

From the shoulders down, his arms were corded with dense, striated muscle. His forearms, in particular, were disproportionately thick, reminiscent of a heavyweight boxer or a seasoned blacksmith. The skin there was rough, tanned, and crisscrossed with faint, silvery scars—the physical toll of enduring micro-fractures, muscle tears, and the sheer agonizing strain of wielding his Quirk for a decade.

 

His Quirk, officially registered as Titan Fists.

 

Dr. Tsubasa had been fascinated by it. "It is similar to the 'Big Fist' Quirk we see occasionally," the doctor had explained to a weeping, relieved Inko all those years ago. "But the mutation goes far deeper. When Izuku activates his Quirk, his hands don't just expand; their molecular density increases exponentially. His bones take on the hardness of high-carbon steel. His muscle fibers multiply in thickness. By the laws of physics, a hand that size should weigh perhaps fifty pounds. Izuku's, when fully expanded, can weigh literal tons. His body will have to adapt just to keep his arms from ripping out of their sockets."

 

And adapt he did. Izuku hadn't spent his childhood reading comics in his room; he had spent it in the dirt, lifting, pulling, breaking, and healing. He had to build a core and legs strong enough to anchor him to the earth so that the weight of his own Quirk wouldn't snap his spine.

 

Currently, Izuku was staring down a colossal punching bag made of layered kevlar and packed with heavy sand, suspended from the steel I-beam ceiling by thick chains.

 

He took a deep breath, grounding his feet into the rubber matting. He focused on his right hand.

 

The activation was instantaneous, accompanied by a heavy, bass-dropping THOOM sound. His right hand violently expanded. In a fraction of a second, his fist grew from the size of a normal teenager's to the size of a small car. The skin darkened, taking on a terrifying, hardened sheen, the knuckles jutting out like boulders. The air around the hand warped slightly, displaced by the sudden, massive introduction of mass.

 

Izuku gritted his teeth, the veins in his neck bulging as his right shoulder screamed against the sudden, localized pull of a few thousand pounds. He didn't let the weight drag him down. He used it.

 

Twisting his hips, pivoting on his back foot, Izuku threw a straight right cross.

 

Because of the sheer mass of the fist, it wasn't blisteringly fast like a boxer's jab. It was a slow, terrifying, inevitable force of nature.

 

BOOOOOOM!

 

The giant fist connected with the kevlar bag. The sound was like a cannon going off indoors. The kinetic energy transferred into the bag, causing the thick steel chains holding it to groan and snap. The bag exploded, sending a localized shockwave through the room that kicked up dust and made the steel-plated walls rattle. Sand blasted everywhere, coating the room in a fine brown mist.

 

Izuku slowly exhaled, letting his Quirk deactivate. The massive hand rapidly shrank back down to its normal size, releasing a hiss of steam as the hyper-dense molecules decompressed. He rolled his right shoulder, wincing slightly at the dull ache in his rotator cuff.

 

"You're dropping your elbow on the follow-through, idiot."

 

Izuku turned, wiping a line of sweat from his forehead. Standing in the doorway of the training room was Katsuki Bakugo. He was leaning against the frame, arms crossed, wearing a loose black tank top and baggy cargo pants. He looked leaner than Izuku, built like a coiled spring of explosive energy.

 

"I have to drop the elbow slightly, Kacchan," Izuku replied mildly, grabbing a towel from a nearby bench. "If I keep it parallel with a hundred percent mass expansion, the centrifugal force will dislocate my shoulder. The downward angle grounds the kinetic energy."

 

Katsuki scoffed, pushing off the doorframe and walking into the room, crunching on the sand. "Excuses. A villain isn't gonna care about your rotator cuff. If you hit them with a glancing blow because you're scared of popping a joint, they'll counter-attack."

 

"I destroyed a reinforced kevlar bag filled with iron-sand, Kacchan. I don't think anyone would call that a 'glancing blow.'"

 

"Tch. A stationary target." Katsuki raised his right hand, a menacing, crackling explosion popping in his palm, casting harsh, flickering light over his sharp features. "Let's see if you can hit something that actually moves."

 

Izuku smiled. It wasn't a smile of arrogance, but of genuine, deep-seated anticipation. Over the past ten years, they hadn't been bullies or victims. They had been the iron that sharpened the iron. Katsuki had the speed, the range, and the aerial mobility. Izuku had the durability, the overwhelming power, and the terrifying close-quarters control.

 

"Five minutes," Izuku said, tossing his towel aside and settling into a wide, grounded martial arts stance. "If you break another light fixture, we're splitting the fine."

 

"I'll break whatever the hell I want!" Katsuki roared, launching himself forward. He blasted an explosion behind him, rocketing across the room at breakneck speed.

 

He closed the distance in a heartbeat, twisting in the air to deliver a devastating right hook, aiming a localized blast right at Izuku’s face.

 

Izuku didn't flinch. His reaction time had been honed against literal explosions. He raised his left hand. In a flash, the hand expanded—not to its maximum size, but just enough. The hand grew to the size of a riot shield, the skin hardening into its dense, armored state.

 

CLANG!

 

Katsuki’s explosive punch slammed into Izuku’s giant palm. Fire and concussive force bloomed across the room, but Izuku didn't budge. He absorbed the blast entirely with his enlarged hand, his feet sliding back only an inch on the matting.

 

Through the smoke, Izuku thrust his right arm forward. He didn't expand the hand until the very last millisecond, using the element of surprise. Just as his knuckles neared Katsuki’s torso, the hand violently swelled to the size of a microwave.

 

Katsuki cursed, twisting his body and firing a blast from his left hand to propel himself sideways, narrowly avoiding a punch that would have shattered his ribs. The sheer wind pressure from Izuku’s passing fist ruffled Katsuki’s spiky hair.

 

As Katsuki landed, he fired off a volley of rapid-fire blasts, attempting to blind Izuku and keep him at a distance.

 

Izuku expanded both hands to the size of garbage can lids, holding them up in a cross-guard, weathering the storm of explosions like a battleship moving through choppy waters. He was a juggernaut.

 

"Come on, Deku!" Katsuki yelled over the deafening roar of his own Quirk. "Don't just hide behind those meat-shields! Hit me!"

 

Izuku dropped his guard. He lunged forward, closing the gap. Katsuki grinned, readying a massive blast.

 

But Izuku didn't throw a punch. He reached out with both hands, expanding them to the size of large beanbag chairs. He didn't aim for Katsuki; he aimed for the air around him.

 

Titan Clap.

 

Izuku slammed his massive, ultra-dense palms together. He didn't catch Katsuki, but he didn't need to. The concussive force of the two heavily-massed objects colliding created a shockwave. A localized gale-force wind erupted from the point of impact, blowing away Katsuki’s smoke and flames instantly.

 

The wind pressure hit Katsuki like a physical wall, throwing the explosive blonde off balance and sending him tumbling backward onto the mat.

 

Izuku immediately shrank his hands back to normal size, breathing heavily, but maintaining his fighting stance.

 

Katsuki sat up, spitting a grain of sand out of his mouth. He looked at Izuku, his red eyes burning with a furious, competitive joy. "You held back on the clap. You could have shattered my eardrums."

 

"I'm not trying to deafen my rival before the U.A. entrance exam," Izuku said, extending a normal-sized hand.

 

Katsuki looked at the hand, then slapped it away, standing up on his own. "I don't need your help, Deku. And I'm not your rival. I'm the guy who's going to stand at the top. You're just the stepping stone."

 

"We'll see," Izuku replied, his tone even, completely unfazed by Katsuki's abrasive nature. He knew Katsuki better than anyone. The aggression was just his way of showing respect. If Katsuki didn't think Izuku was a threat, he wouldn't waste his breath yelling at him.

 

 

 

The following morning, Aldera Junior High was abuzz with the restless energy of third-year students who were beginning to realize that the real world was rapidly approaching.

 

Izuku sat at his desk near the back of the classroom. He was attempting to write down the math equations from the blackboard, but it was a delicate process. His hands, even at their normal size, were thick and muscular. He had to hold the mechanical pencil with a very specific, light grip. If he squeezed even a fraction too hard, or if his Quirk twitched, he would crush the plastic into splinters. He went through about ten pencils a week on average.

 

It was a constant, exhausting mental exercise in restraint. Having a Quirk of mass destruction meant he had to live his life walking on eggshells. He had broken doorknobs, shattered teacups, and once, when he was eight, accidentally ripped the door off a refrigerator when he was startled. He had to be hyper-aware of his own strength at all times.

 

"So," the homeroom teacher announced, tossing a thick stack of papers onto his desk. "As third-year students, it's time to start thinking seriously about your futures and what you want to do with your lives. I could pass out these career aptitude tests..."

 

The teacher paused, a smirk crossing his face. He suddenly threw the stack of papers into the air. "But who am I kidding? You all want to be heroes!"

 

The classroom erupted. Students cheered, showing off their Quirks. A boy stretched his neck, a girl materialized water from her fingertips, another student hovered a few inches off the ground. It was a cacophony of minor, flashy powers.

 

Izuku didn't cheer. He just kept his head down, meticulously writing his equations. He didn't need to show off. He knew what he was capable of.

 

"Hey, teach!" a loud, arrogant voice cut through the noise.

 

Katsuki Bakugo was leaning back in his chair, his feet propped up on his desk. He was grinning confidently. "Don't lump me in with this bunch of rejects. I'm the real deal. These guys will be lucky to end up as sidekicks to some busted D-lister."

 

The class erupted in angry protests.

 

"You think you're better than us, Katsuki?!"

 

"I've got the best scores in this school," Katsuki bragged, ignoring the jeers, his palms letting off small, threatening sparks. "I aced the mock tests. I'm the only one here with the raw power to make it to U.A. High. I'm going to surpass All Might and become the top hero in the world. And I'm going to be the richest, too!"

 

The teacher looked at his clipboard. "Ah, yes, Bakugo. You're aiming for U.A. High, aren't you?"

 

The classroom fell silent. U.A. was the national academy. The acceptance rate was abysmally low. It was a pipe dream for most.

 

"That's right," Katsuki said, his grin widening. He then slowly turned in his seat, his crimson eyes locking directly onto Izuku at the back of the room. "But I guess I'm not the only one."

 

The teacher adjusted his glasses. "Oh, yes. Midoriya. You're applying for U.A. as well, correct?"

 

Every head in the classroom turned to look at Izuku.

 

There was no laughter. There was no mocking.

 

In a different world, perhaps one where Izuku was Quirkless, they might have ridiculed him. But in this world, everyone in Aldera Junior High knew who Izuku Midoriya was. They had seen him in physical education class. They had seen him throw a baseball so hard and fast that the shockwave shattered the gym windows. They had seen the sheer, intimidating bulk of his scarred forearms.

 

They were slightly terrified of him.

 

Izuku didn't shrink under their gaze. He calmly set his pencil down, ensuring he didn't snap it, and looked up. He met Katsuki's challenging glare and gave a small, confident nod.

 

"Yes," Izuku said, his voice calm and steady, carrying easily through the quiet room. "I'm applying to the hero course."

 

A low murmur broke out among the students.

 

"Midoriya and Bakugo..."

 

"Yeah, that makes sense. Those two are monsters."

 

"I wouldn't want to get in either of their ways."

 

Katsuki scoffed, turning back around in his seat. "Don't think you can coast by on raw power, Deku. The entrance exam isn't just about who hits the hardest. It's about application."

 

"I know, Kacchan," Izuku replied softly, picking up his pencil again. "I've been preparing."

 

The bell rang, signaling the end of the school day. The students quickly packed their bags, eager to escape. Izuku took his time, carefully placing his notebooks into his yellow backpack. He didn't want to rush. Rushing led to mistakes. Mistakes led to property damage.

 

He walked out of the school building, the warm afternoon sun washing over him. The cherry blossoms were in full bloom, pink petals drifting on the gentle breeze.

 

"Hey, Deku!"

 

Izuku stopped at the school gates and turned. Katsuki was marching toward him, his backpack slung over one shoulder, his hands shoved deep into his pockets.

 

"Walking home?" Izuku asked.

 

"Obviously," Katsuki grunted, falling into step beside him.

 

They walked in silence for a few blocks. It was a comfortable silence, built on ten years of mutual, grudging understanding. They were two boys carrying immense power, isolated by the sheer destructive nature of their own bodies. Other kids couldn't relate to them. Other kids didn't understand the pressure of knowing you could accidentally kill someone if you lost control of your Quirk for even a second.

 

"Ten months," Katsuki said suddenly, breaking the silence as they walked along a riverside path, the water sparkling in the afternoon light.

 

"To the entrance exam," Izuku nodded.

 

"I've been looking up the previous exams," Katsuki said, kicking a pebble into the river. "It's usually some kind of practical test. Urban combat, maybe robots or villain stand-ins. Lots of moving targets."

 

"We'll need to work on our mobility," Izuku observed. "My raw speed is average. When I expand my hands, the weight anchors me down. If I enlarge them mid-sprint, the sudden shift in mass ruins my center of gravity and I trip."

 

"So don't sprint with them out, idiot," Katsuki scoffed. "Use the expansion as a propellant. If you enlarge your hands fast enough and slam them backward, the displaced air and kinetic force should act like a thruster. You could launch yourself."

 

Izuku blinked, looking at his hands. He simulated the physics in his head. "That... could actually work. The wind pressure would be significant. But the strain on my shoulders would be massive."

 

"So train your shoulders more," Katsuki said bluntly. "You want to be a hero with a Quirk that heavy, you gotta be able to carry the weight."

 

Izuku stopped walking. He looked down at his calloused, scarred hands. He flexed his fingers, feeling the immense latent power humming beneath the skin, just waiting to be unleashed.

 

He remembered the feeling of helplessness when he was four years old, watching that dog lunge at the innocent boy. He remembered the desperate desire to protect, to be a shield. His Quirk wasn't flashy. It wasn't ranged. It was heavy, brutal, and inherently destructive.

 

But it was his.

 

"You're right," Izuku said quietly, his voice filled with a quiet, unshakeable resolve. "I have to carry it. All of it."

 

He looked up at the sky, picturing the towering figure of All Might, the Symbol of Peace. All Might saved people with a fearless smile, his sheer physical prowess enough to deter any villain. Izuku couldn't shoot fire, he couldn't create explosions, and he couldn't fly.

 

But he had these hands.

 

"I'm going to make them undeniable, Kacchan," Izuku said, turning to look at his rival. "My hands. I'm going to make them strong enough to hold up the entire world. I'm going to be a hero who can smash through any obstacle, but still be gentle enough to hold a frightened child."

 

Katsuki stared at him for a long moment, the afternoon sun reflecting in his crimson eyes. A small, almost imperceptible smirk tugged at the corner of his mouth.

 

"Good," Katsuki said, turning away and continuing to walk. "Because if you're aiming for second place behind me, you better be at least that strong."

 

Izuku smiled, adjusting the straps of his backpack, and jogged to catch up.

 

The path to U.A. High was going to be brutal. The training over the next ten months would test the absolute limits of his physical and mental endurance. He would have to learn to wield the mass of a titan with the precision of a surgeon.

 

He looked down at his fists one last time as they walked into the tunnel beneath the overpass. The shadows swallowed them, but Izuku's eyes were fixed on the light at the end.

 

The weight of his hands was immense. But the weight of his dream was heavier. And Izuku Midoriya was ready to lift them both.

 

The afternoon air in Musutafu was thick with the hum of city life and the distant, rhythmic rumble of a passing commuter train. Izuku Midoriya walked alone down the bustling sidewalk, his yellow backpack slung over one broad shoulder. His path home from Aldera Junior High was a familiar one, but today, his mind was leagues away, lost in a labyrinth of biomechanics and physics equations.

 

If I expand the mass of my left hand to roughly two thousand pounds, the counterweight required from my lower body to prevent a forward tumble would mean I have to bend my knees at exactly a forty-five-degree angle, Izuku muttered under his breath, his calloused right hand idly scribbling calculations in a worn notebook he held. But if I use a burst of kinetic energy by sweeping the hand in an arc, the centrifugal force could act as a makeshift shield against projectile Quirks...

 

His intense focus was a necessity. His Quirk, Titan Fists, wasn't a power he could just turn on and off without a second thought. It demanded constant, exhausting calculations. The world was fragile, made of glass and paper compared to the bone-crushing density he possessed. Over the past decade, he had conditioned his body into a fortress just to house his power, but his mind had to be equally disciplined.

 

He paused at a crosswalk, waiting for the light to change. He closed his notebook, looking down at his hands. They were resting at their normal size, though 'normal' for Izuku meant thick, scarred, and heavily muscled, wrapping around his pencil like it was a fragile twig.

 

Suddenly, the ground beneath his boots trembled.

 

It wasn't the passing train. It was a localized seismic thump, followed instantly by the deafening, unmistakable roar of an explosion. A plume of thick, acrid black smoke spiraled into the clear blue sky a few blocks away, near the Tatooin Shopping District.

 

Izuku’s head snapped up. His eyes narrowed. He recognized the sharp, concussive CRACK of that explosion.

 

"Kacchan," Izuku breathed.

 

Without another thought, Izuku shoved his notebook into his backpack, tightened the straps across his broad chest, and broke into a sprint. His heavy combat boots pounded against the pavement, his powerful legs eating up the distance in seconds.

 

As he neared the shopping district, the smell of burning ozone, melting plastic, and raw sewage assaulted his senses. A massive crowd had gathered at the intersection, forming a tight, impenetrable wall of onlookers, holding up their phones and murmuring in a mixture of awe and terror.

 

Izuku pushed his way through the periphery. "Excuse me. Coming through. Please move," he rumbled, his deep voice and imposing, muscular frame parting the sea of civilians with relative ease.

 

When he broke through to the front of the barricade, the breath hitched in his throat.

 

The intersection was a warzone. Fires licked at the facades of the surrounding shops, shattering windows and melting awnings. In the center of the chaos, a grotesque, towering monstrosity made entirely of foul-smelling, dark green sludge thrashed about. The villain had no solid form, just a gelatinous, shifting mass of fluid with two oversized, manic eyes and a jagged maw.

 

And trapped within the center of that suffocating mud was a teenager with spiky ash-blonde hair.

 

Katsuki Bakugo was fighting like a trapped wildcat. He was thrashing, screaming, and firing off massive, desperate explosions from his palms. The blasts were powerful enough to shake the surrounding buildings, tearing chunks of sludge away from the villain, but it was futile. The fluid merely reformed instantly, pulling Katsuki deeper into the suffocating mass.

 

"I hit the jackpot!" the Sludge Villain gurgled, its voice wet and guttural. "With a Quirk like this, and a body this strong, I can finally take down that blonde bastard! Just stop struggling, kid. It'll only hurt for about forty-five seconds!"

 

Izuku scanned the perimeter. The Pro Heroes were already on the scene, but to his growing horror, they were doing absolutely nothing.

 

Death Arms was holding back the crowd, his muscular arms crossed. Kamui Woods was using his branches to rescue civilians from a burning building, his wood too flammable to get near Katsuki's explosions. Mt. Lady was stuck in her giant form at the edge of the two-lane street, complaining that she didn't have the two-lane clearance needed to move in. Backdraft was focused solely on putting out the fires, unable to generate enough water pressure to blast the villain apart.

 

"It's no good!" Death Arms shouted, gritting his teeth in frustration. "None of us have the right Quirks to handle this guy! And the kid's explosions are keeping us from getting close! We just have to wait for someone with a suitable Quirk to arrive!"

 

Wait? Izuku's mind raced. They're going to wait?

 

He looked back at the villain. Katsuki’s face was turning a dangerous shade of purple. The sludge was forcing its way down his throat, drowning him in raw sewage. Katsuki's explosions were growing weaker, the sparks sputtering as oxygen deprivation took its toll.

 

Katsuki’s crimson eyes, usually so full of fierce, untouchable arrogance, met Izuku’s across the flames. There was no plea for help in them. Katsuki would rather die than beg. But there was a look of pure, unadulterated desperation.

 

He's suffocating, Izuku realized, his heart hammering against his ribs. In forty-five seconds, Kacchan is going to die. And they are just standing here.

 

The calculations vanished from Izuku’s mind. The equations, the worries about collateral damage, the strict rules about public Quirk usage—it all burned away, leaving only the white-hot, fundamental instinct that defined his very soul.

 

Before Death Arms could blink, before the crowd could gasp, Izuku Midoriya was gone.

 

He vaulted over the police barricade with terrifying speed. His heavy boots shattered the asphalt as he launched himself forward, sprinting directly into the inferno.

 

"Hey! Kid! Stop! You'll get yourself killed!" Death Arms roared, reaching out, but his fingers only brushed the fabric of Izuku's backpack.

 

Izuku didn't hear him. The world had tunneled down to a single, hyper-focused point. The Sludge Villain. Kacchan.

 

"What do we have here?" the Sludge Villain laughed, a wet, bubbling sound as he saw the teenager charging at him. "Another hero wannabe? You don't even have a flashy Quirk! You're just a kid!"

 

Izuku closed the distance. Ten meters. Five meters.

 

He didn't need to punch the villain. He had studied fluid dynamics. Punching a liquid only displaced it temporarily; it wouldn't free Katsuki, and he risked hitting his friend if he aimed a solid blow into the mass.

 

He needed to change the air pressure. He needed a shockwave.

 

Izuku stopped dead in his tracks three meters from the villain. He planted his feet wide, digging his heels deep into the asphalt. He took a massive breath, expanding his chest, and threw both of his arms out wide to his sides.

 

Titan Fists: Overdrive.

 

The activation was violent. A heavy, resonant THOOM echoed through the alleyway as the air itself seemed to warp around Izuku's arms.

 

In a fraction of a second, Izuku's hands erupted. They didn't just grow to the size of garbage can lids; they bypassed his normal limit. His left and right hands expanded to the size of compact cars. The sheer, catastrophic introduction of mass made the asphalt beneath Izuku's feet spiderweb and crater downward by a full inch.

 

The skin on his giant hands hardened into a dark, impenetrable armor, veins pulsing like thick steel cables beneath the surface. The weight was agonizing. It felt like he was suddenly trying to hold up the world. His biceps bulged, tearing the sleeves of his uniform, and his shoulder joints screamed in protest as thousands of pounds of hyper-dense bone and muscle anchored him to the earth.

 

The Pro Heroes gasped. The crowd fell dead silent. Even the Sludge Villain’s eyes widened in sudden, primal terror as the sheer shadow of Izuku’s colossal hands fell over him.

 

"What the hell is that?!" the villain shrieked.

 

Izuku's emerald eyes burned with a fierce, unwavering light. He didn't speak. He didn't offer a witty one-liner. He just acted.

 

Engaging his core, his obliques, and every muscle fiber in his powerful chest, Izuku swung his arms inward with everything he had. The massive, car-sized hands hurtled toward each other on a collision course, accelerating with terrifying momentum right in front of the Sludge Villain.

 

TITAN CLAP!

 

When the two ultra-dense palms met in the center, the sound was apocalyptic.

 

CRA-KOOOOOOOM!

 

It wasn't just a loud noise; it was a physical force. The kinetic energy generated by the collision of thousands of pounds of hardened mass moving at high velocity had nowhere to go but outward.

 

A localized hurricane erupted from the point of impact. A shockwave of condensed wind pressure exploded forward like an invisible freight train. It hit the Sludge Villain with the force of a bomb.

 

The villain didn't just splatter; the sheer concussive pressure atomized the sludge. The gelatinous body was ripped apart at a molecular level, blown backward into a thousand harmless droplets that rained down on the burning alleyway. The flames on the surrounding buildings were snuffed out instantly, choked of oxygen by the sheer violence of the gale-force wind.

 

The wind pressure carried past the villain, hitting the Pro Heroes and the crowd. Death Arms was pushed back several feet, digging his heels in. Mt. Lady had to shield her face, and Kamui Woods was almost blown off the side of the building. Windows that hadn't already broken from Katsuki's explosions shattered into dust.

 

In the epicenter of the devastation, Izuku slowly exhaled.

 

He let his Quirk deactivate. The massive hands shrank rapidly, hissing as they released steam, returning to their normal, calloused state. Izuku dropped to one knee, panting heavily, his shoulders aching with a dull, throbbing pain.

 

A few feet in front of him, covered in a thin layer of grime but entirely free of the sludge, was Katsuki Bakugo.

 

Katsuki hit the ground on his hands and knees, violently coughing up the foul-tasting mud, gasping greedily for air. He looked up, his chest heaving, his crimson eyes locking onto Izuku.

 

Silence hung over the intersection, broken only by the sound of Katsuki’s coughing and the settling of debris.

 

Izuku stood up, ignoring the burning in his muscles. He walked over to Katsuki and extended a scarred, thick hand.

 

"You okay, Kacchan?" Izuku asked, his voice steady.

 

Katsuki stared at the hand. He was shaking—partly from oxygen deprivation, partly from adrenaline, but mostly from the sheer, overwhelming realization of what had just happened. Izuku hadn't just saved him; he had annihilated the villain with a single, calculated clap. He had done what four Pro Heroes couldn't.

 

Katsuki gritted his teeth. He slapped Izuku's hand away, forcing himself up on his own shaky legs.

 

"I had him," Katsuki rasped, his voice hoarse. "I didn't need your help, Deku. I would have blasted my way out."

 

Izuku just smiled softly. "I know, Kacchan. But I couldn't just stand there and watch."

 

Before their conversation could continue, the Pro Heroes swarmed them.

 

"What were you thinking, you reckless idiot?!" Death Arms bellowed, marching up to Izuku and pointing a thick finger in his chest. "You could have killed the hostage! You could have brought the buildings down! There's a reason civilians aren't allowed to use their Quirks, let alone powers of that magnitude!"

 

Kamui Woods landed next to them. "Your intervention was incredibly dangerous, young man. You leave this to the professionals. We had a plan."

 

Izuku looked at Death Arms, then at Kamui Woods. The adrenaline was fading, leaving behind a cold, clinical clarity. He didn't bow his head. He didn't apologize. He stood to his full height, his broad shoulders squared.

 

"A plan?" Izuku asked, his voice respectful, but carrying a heavy, undeniable weight. "Sir, with all due respect, I watched you stand there for two minutes. He was suffocating. If I had waited for your 'plan', he would be dead."

 

Death Arms flushed red. "You arrogant little—!"

 

"Furthermore," Izuku continued, gesturing to the blast zone. "I calculated the trajectory of the wind pressure. I angled my clap upward at a five-degree incline. The shockwave bypassed the hostage completely and aimed directly at the villain's center of mass, using the surrounding alley walls to funnel the displaced air, putting out the fires in the process. There is no structural damage to the load-bearing pillars of these buildings."

 

The heroes fell silent, staring at the fourteen-year-old boy. He wasn't just a meathead with a powerhouse Quirk. He was a tactician. He had assessed the situation, calculated the physics of his own devastating power, and executed a flawless rescue in the span of three seconds.

 

Backdraft, who had been checking on the scattered remains of the villain, walked over. "The kid's right. The fires are out, and the sludge is incapacitated. Honestly... it was an incredible display of Quirk control."

 

Death Arms crossed his arms, grumbling, though the anger had left his eyes, replaced by a begrudging respect. "Fine. But you're still getting a lecture from the police about unauthorized Quirk usage. Don't think you're above the law just because you pack a punch, kid."

 

While Izuku was being lightly scolded, the other heroes were praising Katsuki for his endurance and his powerful Quirk. But Katsuki wasn't listening to them. His eyes were glued to Izuku's back.

 

He angled it? Katsuki thought, his fists clenching. He did all that math in his head while sprinting into a fire, just so he wouldn't hit me? Damn it, Deku... you really are a monster.

 

 

 

The sun was beginning to set, casting long, fiery orange shadows across the quiet residential streets. Izuku walked home alone, his muscles aching with a familiar, satisfying fatigue. The police had given him a stern warning, but they had also taken down his information, noting his hero course aspirations with raised eyebrows.

 

He took a shortcut under a large bridge, the sound of the traffic above muffled by the concrete. He reached into his bag, pulling out his notebook. He needed to write down the sensation of using Overdrive without planting his feet correctly. He had almost thrown out his back.

 

"I am here!"

 

The booming, larger-than-life voice echoed through the tunnel.

 

Izuku spun around, dropping his pencil.

 

Standing at the entrance of the tunnel, silhouetted against the setting sun, was the Symbol of Peace. All Might was a mountain of muscle, his blonde hair forming two prominent V-shaped antennae, his face obscured by shadow save for his trademark, blinding smile.

 

"All Might?!" Izuku gasped, his eyes going wide. He immediately stiffened, bowing deeply. "S-Sir! It's an honor!"

 

All Might let out a hearty laugh, stepping into the tunnel. "No need for formalities, young man! I came here to find you! I saw what happened at the shopping district. I was..."

 

Suddenly, All Might stopped. He coughed, a violent, hacking sound. Blood spurted from his mouth.

 

Before Izuku’s horrified eyes, the Symbol of Peace vanished in a cloud of thick white steam. When the vapor cleared, the towering titan of muscle was gone. In his place stood a skeletal, gaunt man with sunken blue eyes, wearing clothes that hung off his frail frame like a scarecrow.

 

Izuku blinked, rubbing his eyes. "Um... did you eat All Might?"

 

The skeletal man wiped the blood from his chin with a bony hand and sighed. "No, kid. I am All Might."

 

He proceeded to explain. He told Izuku about his injury, lifting his shirt to reveal a horrific, spider-webbed scar covering the left side of his chest. He explained the surgeries, the loss of his stomach and respiratory organs, and his three-hour daily limit.

 

Izuku listened in stunned silence. The invincible god of heroes was a mortal man, slowly dying.

 

"I was at the shopping district," All Might admitted, sliding down to sit against the concrete wall. "I had hit my limit. I stood in the crowd, watching that boy suffocate, and I did nothing. I let my own weakness stop me. I felt pathetic."

 

All Might looked up, his sunken eyes locking onto Izuku. "But then, you moved. A kid with his whole life ahead of him, charging into a hopeless situation when the pros stood by. You didn't hesitate. Your body moved before you even had a chance to think."

 

Izuku looked down at his heavy hands. "I just... I couldn't watch him die. I have this power. If I don't use it to protect people, what's the point of carrying the weight?"

 

All Might smiled, a genuine, soft expression that lacked the theatricality of his muscular form, but held twice the warmth. "Exactly. That is the essence of a true hero. There are stories about every great hero, how they became great. Most have one thing in common: their bodies moved before they had a chance to think."

 

All Might stood up, his posture straightening slightly. "Young man, you are worthy. I have come to offer you a proposition."

 

Izuku tilted his head. "A proposition?"

 

"My Quirk," All Might said, his voice echoing in the quiet tunnel. "It is not a natural mutation. It is a sacred torch, passed from one generation to the next. It is the crystallized power of those who have held it before me. It is called One For All."

 

All Might explained the nature of his power. The stockpiling of raw energy, the passing of the torch. He explained how he had been searching for a successor, someone with a heroic heart to take up his mantle.

 

"I want you to inherit my power, young Midoriya," All Might said, extending a hand. "With your heroic spirit and One For All, you could become the greatest hero the world has ever seen. You will be the next Symbol of Peace."

 

Izuku stood frozen. The magnitude of the offer washed over him like a tidal wave.

 

All Might, his idol, the greatest hero in history, was offering him the key to absolute, unrivaled supremacy. With One For All, combined with his Titan Fists, he would be unstoppable. He could obliterate any villain. He could surpass Katsuki instantly and forever. He would be a god among men.

 

Izuku looked at All Might's extended hand.

 

Then, slowly, Izuku raised his own hands. He looked at his thick, calloused palms. He traced the silvery scars along his forearms—scars he had earned from years of crying in pain, pushing his body past the breaking point just to wield the heavy mutation he was born with. He thought of the thousands of hours he had spent calculating physics, lifting weights until he threw up, and learning to control his destructive nature so he could hold a pencil without snapping it.

 

His Quirk was a burden. But it was his burden. It was the power he had shaped with his own blood, sweat, and tears.

 

To take One For All... it felt like a betrayal. It felt like admitting that his own hands weren't good enough.

 

Furthermore, Izuku’s analytical mind kicked in. If my bones are currently dense enough to support thousands of pounds of localized mass, adding the kinetic stockpiling of One For All might actually cause a catastrophic internal conflict. The sudden influx of energy could shatter my forearms the moment I expand them. It's too risky. The biomechanics don't align.

 

Izuku took a deep breath. He looked up, meeting All Might’s expectant gaze.

 

"All Might," Izuku began, his voice trembling slightly, but laced with an unbreakable resolve. "I... I can't accept."

 

All Might blinked, clearly taken aback. He lowered his hand. "You... you can't? Young man, do you understand what I'm offering? This is the power to save millions."

 

"I understand," Izuku said, bowing deeply. "And I am more honored than I could ever express. You are my hero, All Might. You always will be. But... I can't take your Quirk."

 

Izuku stood straight, holding his scarred fists up. "I was born with these hands. For a long time, I didn't know if they were a curse or a blessing. They're heavy. They break things. But I've spent the last ten years trying to turn them into shields. If I take your power, I'm taking the easy way out. I want to prove that the Quirk I was born with—the body I was given—is enough to bring peace to this world."

 

He looked All Might in the eye. "I want to reach the top, but I have to do it with my own two hands. I hope you can understand."

 

Silence filled the tunnel. The distant hum of traffic seemed to fade away entirely.

 

All Might stared at the fourteen-year-old boy. He looked at the thick, muscular arms, the calloused knuckles, the fierce, unyielding glint in his emerald eyes. He saw the scars of hard work. He saw a boy who didn't want a shortcut to greatness.

 

Slowly, All Might threw his head back and laughed. It wasn't his booming, heroic laugh, but a quiet, breathless chuckle that shook his gaunt frame.

 

"Well," All Might sighed, wiping a tear from his eye. "I must say, that is a first. I offer the ultimate power, and you turn it down out of sheer, stubborn pride in your own hard work."

 

"It's not just pride—" Izuku started.

 

"I know," All Might interrupted, holding up a hand. His eyes softened, filled with a deep, profound respect. "It's conviction. You are a remarkable young man, Izuku Midoriya. You have the heart of a true hero, and the discipline of a master."

 

All Might rubbed his chin thoughtfully. "However... my conscience won't let me just walk away from this. You're aiming for U.A., correct?"

 

"Yes, sir."

 

"Your Quirk is immensely powerful, but from what I saw, it is highly destructive and requires a lot of setup," All Might observed, slipping into his analytical hero mindset. "You rely on heavy, singular strikes. A 'Titan Clap'. It's effective, but against a nimble opponent in close quarters, or a villain who neutralizes shockwaves, you'll be at a disadvantage."

 

Izuku nodded slowly. "That's my biggest weakness. My agility suffers when I expand my mass, and I don't have refined close-quarters combat techniques. I'm essentially a brawler."

 

All Might grinned, a shadow of his larger-than-life persona bleeding into his skeletal face. "Well then. If you won't take my Quirk, perhaps you will take my tutelage."

 

Izuku’s eyes widened. "Your... tutelage?"

 

"I may not be able to pass on One For All to you," All Might said, stepping forward and placing a heavy, bony hand on Izuku’s broad shoulder. "But I have spent four decades fighting villains hand-to-hand. I know how to use weight, momentum, and leverage better than anyone on this earth. You have the raw power, Midoriya. Let me teach you how to fight."

 

Izuku's heart soared. He didn't need a new Quirk. He needed exactly this—the wisdom of the greatest martial artist and hero in the world.

 

"I..." Izuku stammered, tears suddenly pricking the corners of his eyes. "I would be honored, All Might."

 

"Good!" All Might declared. "The U.A. entrance exam is in ten months. We don't have a moment to lose. Meet me at the Dagobah Municipal Beach Park tomorrow at 6:00 AM. It's time to turn those heavy hands of yours into the finest weapons of justice this world has ever seen!"

 

Izuku bowed again, a wide, unstoppable grin breaking out across his face.

 

He didn't have One For All. He didn't have explosions or fire or ice.

 

He had his own two hands. And with All Might teaching him how to use them, the world was about to find out just how heavy the weight of a titan truly was.

 

The ten months leading up to the U.A. High School entrance exam passed in a grueling, relentless blur of sweat, sand, and the echoing thud of heavy impacts.

 

Dagobah Municipal Beach Park had been completely cleared of illegal dumping long ago, leaving a pristine stretch of white sand that met the crashing waves of the Pacific. It was here, in the secluded hours of the early dawn before the city awoke, that Izuku Midoriya underwent a metamorphosis under the watchful, critical eye of the greatest hero in the world.

 

All Might had kept his promise. He didn't offer Izuku One For All again; he respected the boy’s unyielding conviction too much for that. Instead, he offered something arguably just as valuable: four decades of peerless combat experience.

 

"Your Quirk changes the rules of physics, young Midoriya!" All Might had shouted over the roar of the ocean on their first day of training. He was in his skeletal form, wearing baggy sweatpants and a massive coat to hide his emaciated frame, but his martial arts stance was flawless. "When you expand your hands, you alter your center of gravity. You become top-heavy. A simple jab can throw you off balance if you miss. You must learn to fight not as a boxer, but as a pendulum! You must use the weight of your hands to generate momentum, pulling your body along with the strike rather than fighting against it!"

 

And so, the training began. It wasn't about building muscle—Izuku’s body was already a dense, scarred fortress built to withstand the crushing strain of his Titan Fists. It was about technique. It was about footwork.

 

All Might taught him how to anchor his hips. He taught him how to slip punches, using the sheer size of his enlarged hands not just as battering rams, but as impenetrable, hyper-dense shields. Izuku learned to dynamically shift his mass mid-swing. He would start a punch with a normal-sized hand for maximum speed, and only in the final millisecond before impact would he trigger his Quirk, violently expanding his fist to the size of a wrecking ball. The sudden transfer of kinetic energy was catastrophic to anything it hit.

 

By the end of the ten months, Izuku was no longer just a brawler with heavy hands. He was a weapon forged in the fires of biomechanical genius and unparalleled combat pedigree.

 

 

 

The morning of the U.A. Entrance Exam was crisp and clear, the sky a brilliant, cloudless azure.

 

Izuku stood at the gates of the legendary hero academy, looking up at the towering, glass-paneled H-shaped main building. He wore his black Aldera Junior High uniform, though the jacket was unbuttoned to accommodate the sheer width of his chest and shoulders. He took a deep, steadying breath, feeling the latent, heavy power humming in his forearms.

 

"Don't just stand there blocking the gate, Deku. You're taking up too much space."

 

Izuku didn't flinch. He turned his head and offered a calm, self-assured smile. Katsuki Bakugo strode toward him, hands shoved deep into his pockets, his posture radiating a dangerous, explosive confidence.

 

"Morning, Kacchan," Izuku greeted, his deep voice smooth. "Ready for today?"

 

Katsuki scoffed, stopping next to Izuku and looking up at the towering school. "I've been ready since I was four. I'm gonna crush this exam, set a new high score, and leave you in the dust. I hope you've been working on more than just clapping your hands together."

 

"I have," Izuku replied simply. "But don't push yourself too hard. I'd hate for you to burn out before we even get to the hero course."

 

Katsuki flashed a feral grin, sparks dancing across his knuckles. "Worry about your own damn joints, heavy-hitter. Let's see who comes out on top."

 

With that, Katsuki shoved past him, marching onto the campus with the swagger of a conquering king. Izuku watched him go, his own competitive fire burning bright in his chest. He adjusted the straps of his backpack and took his first step toward his destiny.

 

As he walked down the wide, brick-paved path toward the auditorium, he was acutely aware of the gazes of the other applicants. Most of them were sizing each other up, looking for flashy Quirks or intimidating physiques. Izuku certainly fit the latter category. At fourteen, he was built like a tank, his thick neck and heavily scarred, corded forearms drawing nervous whispers from the teenagers he passed.

 

Suddenly, a short girl with a round, rosy-cheeked face and a bouncy brown bob sprinted past him, looking panicked. "Oh no, oh no, I'm gonna be late!" she squeaked.

 

In her haste, the toe of her shoe caught the raised edge of a cobblestone. She pitched forward, letting out a yelp of surprise, bracing for a painful face-plant against the hard brick.

 

Izuku reacted with terrifying speed.

 

He didn't activate his Quirk. He simply pivoted on his heel, dropping his center of gravity, and shot his right hand out. His thick, calloused fingers caught the front of her uniform jacket with a grip that was as gentle as it was immovable. He stopped her fall completely, holding her suspended an inch above the ground.

 

"Whoa," the girl gasped, her wide brown eyes staring at the bricks just below her nose.

 

Izuku effortlessly pulled her upright, setting her back on her feet as if she weighed absolutely nothing. "Careful," he rumbled gently, withdrawing his hand. "The pavement here is pretty unforgiving."

 

The girl blinked, looking up at Izuku. It was a long way up. She took in his broad shoulders, his muscular build, and the kind, surprisingly gentle emerald eyes that contrasted with his intimidating physique. A bright pink blush spread across her cheeks.

 

"T-Thank you!" she stammered, rubbing the back of her neck. "I'm Ochaco Uraraka! I was so nervous I wasn't even watching where I was going. You totally saved me!"

 

"Izuku Midoriya," he replied, giving a polite nod. "It's no problem, Uraraka. It would be a shame to get hurt before the exam even starts. Good luck in there."

 

"You too, Midoriya!" she beamed, her panic replaced by a radiant, bubbly enthusiasm. She gave him a quick wave before jogging off toward the auditorium, much more carefully this time.

 

Izuku smiled softly and continued on his way.

 

 

 

The orientation was held in a massive, darkened auditorium. Izuku sat beside Katsuki, both of them staring down at the brightly lit stage where the Voice Hero: Present Mic was in the middle of a bombastic, eardrum-shattering presentation.

 

Present Mic explained the parameters of the practical exam. It was an urban combat simulation. The applicants would be dropped into massive mock-cities and tasked with destroying three different types of robotic "Villains," each worth one, two, or three points depending on their difficulty.

 

Speed, power, and adaptability, Izuku thought, a pen spinning nimbly between his thick fingers. They're testing our ability to assess threats and execute takedowns in a chaotic environment. Kacchan’s explosions are perfect for this. My Quirk is well-suited for destruction, but I need to ensure my mobility doesn't hold me back.

 

"Excuse me! May I ask a question?"

 

A tall, broad-shouldered boy with neatly parted blue hair and glasses stood up, his arm raised rigidly in the air like a flagpole. He pointed at the pamphlet on his desk. "On the printout, there are four types of villains listed! If this is a misprint, then U.A., the most prominent school in Japan, should be ashamed of that foolish mistake!"

 

The boy then turned around, pointing directly at a kid with messy green hair a few rows back. Wait, no. He was pointing at a kid sitting near Izuku. "And you, with the curly hair! You've been muttering this entire time! It's distracting! If you're here on a pleasure trip, then you should leave immediately!"

 

Izuku blinked. He looked at the kid the blue-haired boy was pointing at, then looked back at the stage. Izuku himself hadn't been muttering. He learned to keep his analysis internal years ago.

 

Present Mic smoothly defused the situation. "Okay, okay, Examinee Number 7111! Thanks for the great message! The fourth villain type is worth zero points! It's an obstacle, so to speak! There's one in every battle center! It's not impossible to defeat, but there's no reason to! I recommend you listeners try to avoid it!"

 

A zero-point obstacle, Izuku mused, his eyes narrowing. An insurmountable threat that yields no reward. It's a test of threat assessment and risk avoidance. The logical move is to run.

 

He glanced at Katsuki. Katsuki was grinning, his eyes fixed on the stage. He was absolutely going to try and blow it up.

 

 

 

Battle Center B was a breathtaking feat of engineering. It was a sprawling, hyper-realistic replica of a dense urban metropolis, complete with skyscrapers, alleyways, storefronts, and traffic lights.

 

Izuku stood near the back of the massive crowd of applicants gathered in front of the colossal steel gates. He was stretching his arms, ignoring the nervous chatter around him. He spotted the blue-haired boy with glasses doing some rigid calisthenics near the front, and he saw Uraraka taking deep breaths a few yards away.

 

"Right, let's start!"

 

Present Mic’s voice boomed from the hidden loudspeakers, catching everyone off guard.

 

"Get moving! There are no countdowns in real battles! Run, run, run, listeners! You're wasting time!"

 

While the rest of the applicants stared at the gates in momentary confusion, Izuku didn't hesitate. He had been waiting for this for ten years.

 

He lunged forward.

 

Titan Fists: Quarter Expansion.

 

As he took his first massive stride, he threw his arms backward. In a flash of warping air and a deep THOOM, both of his hands expanded to the size of large suitcases. He angled his palms toward the ground behind him and violently snapped his wrists.

 

The sheer kinetic force of the heavy hands snapping backward displaced a massive amount of air. A localized shockwave erupted behind him, acting as a thruster.

 

The burst of wind pressure launched Izuku forward like a cannonball. He rocketed past the stunned crowd of applicants, shooting through the open gates and into the artificial city before anyone else had even taken their first step.

 

He landed heavily on the asphalt a hundred yards deep into the city, immediately shrinking his hands back to normal size to regain his balance. He fluidly rolled out of the landing, springing to his feet just as three robotic villains—two 1-Pointers and a 2-Pointer—rolled out from a side street.

 

"Target acquired," the robots buzzed in unison, their red optical sensors locking onto him.

 

Izuku didn't slow down. He charged them.

 

The 2-Pointer, a scorpion-like machine, raised its tail and fired a volley of rubberized, high-velocity rounds.

 

Izuku raised his left arm. Half Expansion.

 

His left hand swelled to the size of a riot shield, the skin instantly hardening into its dark, hyper-dense armored state. The rubber bullets ricocheted off the back of his massive hand with a series of loud CLANGS, completely failing to penetrate or even bruise the hardened flesh.

 

Using the massive hand as a shield, Izuku closed the distance. He dropped his left arm, letting the sheer weight pull his torso downward and to the side, perfectly dodging a mechanical claw swipe from one of the 1-Pointers.

 

Using the momentum of his dodge, Izuku pivoted on his right heel, torquing his hips and swinging his normal-sized right fist in a devastating uppercut toward the 2-Pointer’s chassis.

 

Full Expansion.

 

A millisecond before impact, his right hand erupted. It swelled to the size of a compact car, the sheer mass and density multiplying his kinetic energy by thousands.

 

CRUNCH!

 

The impact was apocalyptic. The giant, rock-hard fist slammed into the underside of the 2-Pointer. The reinforced steel chassis didn't just bend; it crumpled like wet tissue paper. The entire robot was launched twenty feet into the air, completely shattered, wires sparking and oil spraying.

 

Izuku didn't pause to watch it fall. The heavy right fist anchored him. He used the momentum to spin, shrinking his right hand and expanding his left hand to the size of a boulder, delivering a sweeping backhand that caught both 1-Pointers at the same time. The sheer concussive force crushed their optical sensors and tore their mechanical heads clean off their bodies.

 

Four points, Izuku counted internally, breathing steadily. Time elapsed: twenty seconds.

 

He took off running down the main avenue.

 

 

 

High above the Battle Centers, hidden away in a darkened, multi-monitor observation room, the faculty of U.A. High watched the exams unfold.

 

"In this practical exam, the examinees have not been informed of the number of villains or their locations," a small, bear-mouse-dog creature named Principal Nezu said, sipping a cup of tea. "They have a limited amount of time in a vast area. They have to draw the villains out. Information gathering ability to understand the situation before anyone else. Mobility that can be used in many different circumstances. Discernment to stay calm in any situation. And pure combat ability."

 

"This year's crop looks promising," a woman in a skin-tight hero costume, Midnight, purred. She pointed a manicured finger at a screen displaying Battle Center A. "That explosive boy is terrifying. He's got zero hesitation. He's just blasting his way through everything."

 

"He's certainly racking up points quickly," a man clad entirely in black bandages, Eraserhead, muttered from the corner. His tired eyes, however, weren't on Katsuki Bakugo. They were fixed on a monitor showing Battle Center B. "But look at Examinee 2234. Midoriya."

 

The other teachers shifted their attention.

 

On the screen, Izuku was surrounded by a half-dozen 3-Pointers. He wasn't panicking. He wasn't lashing out wildly. He was moving with a terrifying, rhythmic precision.

 

A 3-Pointer fired a laser. Izuku stepped inside the guard, expanding his hand just enough to block the beam with his hardened knuckles, then shrank it, grabbed the robot's arm, and used a judo throw to slam it into another robot. As they piled up, he expanded both hands to the size of massive anvils, jumped, and brought them down in a double-hammer strike that flattened the entire group into scrap metal.

 

"Good lord," the Blood Hero, Vlad King, muttered. "The sheer kinetic output of that Quirk is off the charts. It's like watching a wrecking ball perform ballet. The mutation must give his hands incredible density."

 

"It's not just his power," Eraserhead said, his tone flat but laced with rare approval. "Look at his footwork. Look at his restraint. He's constantly manipulating his mass, expanding and shrinking his hands in fractions of a second to utilize momentum and avoid ruining his center of gravity. He's fighting with the tactical mind of a veteran martial artist. He's doing the math on every single strike to ensure he doesn't destroy the surrounding buildings."

 

Standing in the shadows at the back of the room, All Might grinned, his skeletal chest swelling with pride. Show them, young Midoriya. Show them the weight of your resolve.

 

"He's currently at seventy-four points," Nezu noted, checking a tablet. "He's far in the lead for Battle Center B. But true heroics is about more than just racking up numbers."

 

Nezu reached out and pressed a large, ominous red button on his console.

 

"Let's see how they handle the true test."

 

 

 

Izuku stood in the center of an intersection, surrounded by the smoking, mangled remains of at least twenty robots. His breathing was heavy, sweat beading on his forehead. The muscles in his shoulders burned with a dull, throbbing ache. Constantly shifting extreme mass was taking its toll.

 

He checked his imaginary watch. Three minutes left. I have eighty-two points. That should be more than enough to secure a spot in the hero course. I just need to pace myself and—

 

The ground violently shook.

 

It wasn't a localized tremor. The entire mock-city seemed to pitch sideways. A deafening, metallic screech echoed through the air, followed by the sound of shattering glass and crumbling concrete.

 

At the end of the main avenue, a shadow fell over the city block.

 

Izuku looked up, his emerald eyes widening.

 

The Zero Pointer wasn't a robot. It was a walking skyscraper. It towered over the four-story buildings surrounding it, a colossal, heavily armored juggernaut rolling on massive tank treads. Its head was a terrifying array of red optical sensors, and its arms were thick enough to crush a city bus with ease.

 

With a mechanical roar, the Zero Pointer swung one of its massive arms, smashing through the top half of a building just to clear its path. Debris rained down on the street below like a localized meteor shower.

 

Panic erupted.

 

"What the hell is that?!"

 

"It's huge! It's as big as a building!"

 

"Run! The teachers said to avoid it!"

 

The applicants, who had been confidently destroying the smaller robots moments ago, broke and fled. The blue-haired boy with glasses sprinted past Izuku, his face pale with terror.

 

Izuku took a step back. It's a gimmick, his analytical mind whispered. It's too big, too heavily armored. The logical play is to retreat. I have the points. Engaging it is a needless risk to my stamina and joints.

 

He turned to run.

 

"Ow! S-Somebody help!"

 

Izuku froze.

 

The voice was faint, barely audible over the grinding gears of the colossal machine, but Izuku heard it. He spun around, his eyes scanning the chaotic street.

 

Near the base of the approaching Zero Pointer, pinned beneath a massive slab of concrete that had fallen from the destroyed building, was Ochaco Uraraka. She was struggling desperately, trying to push the rubble off her leg, but it was too heavy. Her face was contorted in pain and terror as the shadow of the giant robot fell over her.

 

The Zero Pointer didn't notice her. Its massive tank treads were rolling forward, crushing the asphalt. In less than ten seconds, she would be crushed to death.

 

Run, the logical part of his brain screamed. It's just an exam! The teachers will step in! They wouldn't let a student die!

 

But Izuku remembered the Sludge Villain. He remembered the Pro Heroes standing around, waiting for a better opportunity, while Katsuki suffocated.

 

He didn't know if the teachers would step in. He didn't care.

 

His body moved before he had a chance to think.

 

Izuku didn't just sprint; he detonated. He engaged his Quirk, expanding his hands behind him and creating a massive blast of wind pressure that shattered the pavement where he stood. He launched himself toward the towering mechanical titan, a green blur moving at breakneck speed against the tide of fleeing students.

 

"What is he doing?!" the blue-haired boy yelled, stopping in his tracks and staring in disbelief. "He'll be killed!"

 

Izuku ignored him. He closed the distance, skidding to a halt right in front of Uraraka. The Zero Pointer was right above them, its massive tread raising to crush everything in its path.

 

"M-Midoriya?" Uraraka gasped, tears streaming down her face.

 

"I've got you," Izuku said, his voice terrifyingly calm.

 

He grabbed the massive slab of concrete pinning her leg. He didn't expand his hands—he needed precision, not mass. Relying on his raw, heavily-trained muscular strength, he heaved. The concrete groaned, then lifted. He tossed the two-ton slab aside like it was a piece of styrofoam.

 

He scooped Uraraka up in his arms, holding her tightly against his chest. But he looked up.

 

It was too late to run. The colossal tank tread was coming down. The shadow eclipsed them completely.

 

If I try to block it with a shield-expansion, the sheer weight of the robot pushing down will drive us straight into the earth. We'll be buried alive, Izuku calculated in a fraction of a millisecond. I can't defend against this much mass. I have to destroy it.

 

He gently but quickly tossed Uraraka backward, sliding her several yards across the smooth pavement, out from directly underneath the tread.

 

Izuku then turned his full attention to the mountain of steel descending upon him.

 

He took a deep breath, drawing oxygen deep into his lungs. He planted his feet shoulder-width apart, bending his knees in a perfect, deeply anchored martial arts stance. He pulled his right arm back, twisting his hips, coiling every ounce of physical power his heavily muscled frame possessed.

 

He closed his eyes.

 

Dr. Tsubasa said the molecular density of my hands increases proportionally with the size expansion. But my body can only anchor so much weight before my own skeleton shatters under the gravitational pull. My absolute maximum safe limit is the size of a compact car.

 

Izuku opened his eyes. They burned with a fierce, blinding emerald light.

 

To hell with the safe limit.

 

TITAN FISTS: MAXIMUM OVERDRIVE!

 

The activation didn't just make a sound; it caused a localized atmospheric disturbance.

 

Izuku unleashed everything. He didn't restrict the growth. He poured every ounce of his willpower, every drop of his stamina, into his right hand.

 

The mutation went berserk.

 

His right hand erupted. It bypassed the size of a boulder. It bypassed the size of a car. The hand expanded with catastrophic speed and violence, growing until it was the size of a small, two-story house.

 

The sheer, unfathomable mass of the appendage caused the air pressure in the street to drop precipitously. A vacuum was created around him as the hand displaced thousands of cubic feet of oxygen.

 

The skin on this colossal hand didn't just darken; it turned pitch-black, taking on the visual properties of raw obsidian. The veins pulsing along the back of the hand were as thick as water mains. The density was so extreme that gravity itself seemed to warp around it.

 

Izuku screamed. It was a raw, guttural roar of absolute agony. The muscles in his right shoulder tore. The bones in his collarbone groaned, micro-fractures splintering across his skeletal structure as his body fought desperately to keep his arm attached to his torso under the weight of hundreds of tons of hyper-dense mass. His combat boots shattered the concrete, burying his feet up to his ankles as the earth struggled to support him.

 

The Zero Pointer’s tread came down.

 

Izuku threw the punch.

 

He drove his hips forward, using the perfect, pendulum-like momentum All Might had taught him, swinging the house-sized, obsidian-hard fist in a devastating, skyward uppercut.

 

"METEOR SMASH!"

 

When Izuku’s colossal fist collided with the underside of the Zero Pointer’s tread, the world simply went white.

 

There was no sound of bending metal. There was only the ear-splitting roar of a concussive shockwave that defied the laws of physics.

 

The kinetic energy transferred from Izuku’s hyper-dense fist into the robot was so utterly overwhelming that the Zero Pointer’s armor didn't just break; it completely failed. The house-sized fist smashed through the tread, tore through the reinforced steel chassis, and erupted out the top of the robot’s main body, completely hollowing out the titan in a single, catastrophic strike.

 

The sheer wind pressure generated by the punch blasted upward, tearing a hole in the clouds above the mock city.

 

The hollowed-out remains of the colossal machine hung in the air for a fraction of a second, suspended by the upward force, before the internal munitions cooked off. The top half of the robot exploded in a blinding fireball, raining molten scrap metal down across the empty streets.

 

Down on the ground, the shockwave had blown away all the surrounding debris.

 

Izuku immediately severed his Quirk. The gargantuan hand vanished, shrinking back to its normal size in an instant, releasing a massive cloud of hissing, superheated steam.

 

Without the colossal weight anchoring him, Izuku’s body went limp. He collapsed forward, falling onto his back against the cracked asphalt. His right arm was a mess of deep, angry purple bruises, the uniform sleeve completely shredded. His shoulder was dislocated, hanging at a sickening angle. He was gasping for air, his vision swimming with black spots.

 

Silence descended upon Battle Center B.

 

The remaining applicants, who had stopped running to watch the spectacle, were frozen in absolute, terrified awe. They stared at the smoldering, decapitated ruins of the Zero Pointer, and then at the heavily muscled, broken boy lying in the crater.

 

Uraraka, who had been blown back by the wind pressure, sat up. She stared at Izuku, her jaw slack, her heart hammering against her ribs. He had just punched a building in half. To save her.

 

"Time's up!" Present Mic’s voice echoed across the devastated city.

 

Izuku closed his eyes, a small, pained smile touching his lips.

 

I did it, he thought, the pain in his shoulder finally dragging him down into unconsciousness. I held the weight.

 

 

 

In the observation room, there was dead silence.

 

None of the Pro Heroes were speaking. They were all staring at the main monitor, where the smoke was slowly clearing to reveal the utter destruction Izuku Midoriya had wrought.

 

Nezu’s teacup had stopped halfway to his snout. Midnight’s eyes were wide, her hand covering her mouth. Vlad King looked like he had forgotten how to breathe.

 

"What... what kind of Quirk is that?" Midnight finally whispered, her voice trembling slightly. "That wasn't just strength. That was... catastrophic mass manipulation. He turned his hand into a weapon of mass destruction."

 

"And he did it to save a fellow applicant," Eraserhead said quietly. A rare, genuine smile touched the corner of the underground hero’s mouth. "He assessed the threat, realized he couldn't run with the hostage, and chose to obliterate the obstacle entirely. He shattered his own limits to protect someone else."

 

All Might stood in the shadows, his hands clenched into fists, trembling with overwhelming pride. You didn't just hold the weight, young Midoriya. You shattered expectations entirely. You proved to me, and to the whole world, that you don't need my power. You are already a titan.

 

Nezu slowly lowered his teacup. A wide, manic grin spread across his furry face.

 

"Well, ladies and gentlemen," the principal chuckled. "I believe we have found this year's top scorer."

 

 

 

One week later.

 

Izuku sat at the small kitchen table in his apartment, staring at the plain white envelope bearing the U.A. wax seal. His right arm was in a sling, his shoulder heavily wrapped in bandages. Recovery Girl had managed to pop it back into place and heal the torn muscles, but she had scolded him fiercely about the dangers of extreme localized mass expansion.

 

His mother, Inko, paced nervously behind him, biting her fingernails. "Oh, Izuku... I'm so nervous. What if the written exam was too hard? What if you didn't get enough points?"

 

Izuku reached out with his left hand, his thick, calloused fingers gently breaking the seal. "It's okay, Mom. Whatever happens, happens."

 

A small metal disc slipped out of the envelope and clattered onto the table. Before Izuku could inspect it, the disc whirred to life, projecting a massive, three-dimensional hologram into the center of the kitchen.

 

"I AM HERE AS A PROJECTION!"

 

Inko shrieked, falling backward onto the sofa.

 

Izuku’s eyes widened. It was All Might, in his full, muscular glory, wearing a sharp yellow suit.

 

"Young Midoriya!" the hologram of All Might boomed, pointing directly at him. "You did excellently on the written exam! But of course, you know that! You're a brilliant tactician!"

 

All Might’s face softened, his booming voice lowering to a tone of profound respect. "But the practical exam is where you truly shined. You scored eighty-two villain points. An incredible feat! But the U.A. entrance exam doesn't just grade on destruction."

 

The hologram shifted, showing a video clip of Izuku sprinting toward the Zero Pointer, effortlessly tossing the concrete off Uraraka, and unleashing the Meteor Smash.

 

"A hero is someone who risks their life to protect others!" All Might declared, tears of pride visible in his holographic eyes. "You displayed immense courage, young man. You threw yourself into the path of an unstoppable force to save a life. And for that, the judges awarded you..."

 

The screen flashed.

 

"Sixty Rescue Points!"

 

Izuku gasped.

 

"A total of one hundred and forty-two points!" All Might cheered. "You didn't just pass, Midoriya! You utterly obliterated the previous entrance exam record! You placed first overall!"

 

The hologram of All Might smiled warmly, reaching a hand out as if to touch Izuku’s shoulder. "Come, young Midoriya. This is your hero academia."

 

The projection fizzled out.

 

Izuku sat in stunning silence. One hundred and forty-two points. First place.

 

He looked down at his left hand, slowly curling his thick fingers into a fist. A tear slipped down his cheek, followed by a wide, unbreakable grin.

 

Across town, in the Bakugo household, Katsuki was staring at a very similar hologram.

 

His score was displayed in glowing neon letters.

 

Katsuki Bakugo. Villain Points: 77. Rescue Points: 0. Total: 77.

 

Rank: 2nd.

 

Katsuki stared at the number '2' for a long, agonizing minute. The hologram flickered off.

 

Katsuki’s hands began to shake. A low, guttural growl built in his chest. Small, violent explosions popped from his palms, singeing the edges of his desk.

 

He didn't just lose. He was nearly lapped. Deku had scored almost double his points. Deku, the kid with the heavy hands, had taken the top spot.

 

Katsuki’s crimson eyes burned with a mixture of absolute fury and a terrifying, obsessive resolve.

 

"You think you're better than me, Deku?" Katsuki snarled into the empty room, his teeth bared in a feral grin. "You think a little rescue stunt makes you the king?"

 

He stood up, kicking his desk chair across the room, the wood splintering against the wall.

 

"Enjoy the view from the top while you can, heavy-hitter," Katsuki vowed, smoke rising from his fists. "Because I'm going to blow you right off the mountain."

 

The morning sun filtered through the small window of the Midoriya apartment, casting a warm, golden glow across Izuku’s bedroom floor. Dust motes danced in the light, disturbed by the heavy, rhythmic breathing of the teenager doing one-handed pushups in the center of the room.

 

Ninety-seven... ninety-eight... ninety-nine... one hundred.

 

Izuku pushed off the floor, his massive right hand catching his weight before he sprang to his feet. He exhaled a long, steady breath, wiping the sweat from his forehead with the back of his heavily scarred forearm.

 

Today was the day. His first day at U.A. High School.

 

He walked over to his closet and pulled out the pristine gray and green uniform. Putting it on was a daily exercise in extreme caution. The U.A. administration had kindly tailored the blazer and shirt to accommodate his unusual physique, widening the shoulders and significantly increasing the girth of the sleeves. Even so, the fabric pulled taut across his chest and biceps. He had spent the last ten years building a body capable of acting as an anchor for his Titan Fists, and the result was a fourteen-year-old who looked like a seasoned heavyweight champion.

 

He stood in front of his full-length mirror, meticulously buttoning the jacket. His fingers—thick, calloused, and naturally dense—handled the small plastic buttons with agonizing slowness. One twitch, one accidental micro-expansion of his Quirk, and he would crush the buttons into powder.

 

"Izuku! Breakfast is ready! You don't want to be late for your first day!" Inko Midoriya’s voice floated through the thin walls.

 

"Coming, Mom!" Izuku called back, his deep, resonant voice vibrating slightly in his chest.

 

He grabbed his yellow backpack, looping it over one broad shoulder, and walked out into the kitchen. Inko was buzzing around the stove, plating a massive breakfast of rice, grilled fish, eggs, and miso soup. She knew her son's caloric intake requirements were astronomical. Maintaining the muscle mass required to wield his Quirk, not to mention the energy expended when he rapidly altered his cellular density, meant he had to eat like a professional athlete.

 

"Look at you," Inko said, her eyes welling up with tears as she set the plates down. She wiped her hands on her apron, sniffling. "My little boy, in a U.A. uniform. I'm so proud of you, Izuku. First place in the entrance exam... I still can't believe it."

 

Izuku smiled gently, sitting down at the table. He picked up his chopsticks with his right hand, holding them with a delicate, practiced grip. "Thanks, Mom. But the entrance exam was just the starting line. The real work begins today."

 

He ate quickly but carefully, ensuring he didn't accidentally snap the wooden chopsticks. When he finished, he stood up, towering over his mother. She reached up, adjusting his red tie with trembling fingers.

 

"Be careful, okay?" she whispered. "I know your shoulder is fully healed, but Recovery Girl warned you about pushing your mass expansion past its absolute limit. Don't do anything reckless."

 

"I promise, Mom. I know my limits," Izuku reassured her, leaning down to kiss her cheek. "I'll see you this afternoon."

 

Stepping out of the apartment building, the morning air was crisp and invigorating. The commute to U.A. was a quiet one. Izuku rode the train, standing near the doors. He didn't sit; he took up too much room, and he preferred to keep his legs engaged to maintain his balance. As the train rattled along the tracks, he closed his eyes, mentally reviewing the laws of kinetic energy, fluid dynamics, and mass displacement.

 

If they put us in combat simulations today, I need to focus on collateral damage control, he thought. U.A.'s training grounds are sturdy, but my 'Meteor Smash' against the Zero Pointer caused a localized earthquake. I can't use maximum overdrive against a human opponent. I have to rely on partial expansions and pendulum momentum.

 

When he finally passed through the towering security gates of U.A. High, he felt a familiar, competitive fire ignite in his chest. He navigated the labyrinthine hallways, his heavy combat boots echoing against the polished floorboards, until he found a massive door marked with a giant red 1-A.

 

The door is huge, Izuku noted. Built for mutation Quirks. Good. I won't have to turn sideways to get in.

 

Before he even reached for the handle, he heard the shouting.

 

"Take your feet off that desk immediately!"

 

"Huh?! Who the hell are you?"

 

"I am Tenya Iida, from Somei Private Academy! And I am telling you that you are disrespecting the upperclassmen who used this desk before you, as well as the craftsmen who made it!"

 

"Somei Private Academy? So you're an elite, huh? I'm gonna have fun crushing you!"

 

Izuku sighed. Kacchan hasn't changed a bit.

 

He reached out, grasping the handle, and slid the massive door open.

 

The argument inside abruptly stopped. Every eye in the classroom snapped toward the doorway.

 

Izuku stepped into the room, his imposing frame filling the entrance. He stood at 5'9"—not exceptionally tall for his age—but his sheer width and the dense, corded musculature visible beneath his tailored uniform made him look like a mountain. His emerald eyes calmly swept across the room, taking in his new classmates.

 

Tenya Iida, the tall, blue-haired boy from the entrance exam, immediately marched over. He stopped a few feet away, his eyes widening slightly as he took in Izuku's sheer physical mass up close, before extending a rigid hand.

 

"Hello! I am Tenya Iida! You are Izuku Midoriya, correct?"

 

"I am," Izuku said, gently accepting the handshake. He was careful to apply only the barest minimum of pressure, though he felt Iida wince slightly anyway.

 

"I must apologize," Iida said, bowing sharply at a ninety-degree angle. "During the entrance exam orientation, I misjudged you. I thought you were merely sitting quietly, but you had deduced the true nature of the practical exam! You realized there was a hidden rescue mechanic! And your display of power against the Zero Pointer... it was breathtaking! You are truly a superior student!"

 

Izuku rubbed the back of his neck with his free hand, feeling a bit awkward at the intense praise. "I didn't deduce anything, Iida. I just saw someone in danger and moved to help her. That's all."

 

"Tch. Look at you, soaking up the praise, Deku."

 

Izuku looked past Iida. Katsuki Bakugo was leaning back in his chair, his feet resting casually on his desk. His crimson eyes glared daggers at Izuku, burning with a volatile mixture of hostility and fierce rivalry.

 

"Morning, Kacchan," Izuku said calmly, walking past Iida and approaching Bakugo's desk. "I see you're making friends already."

 

"Shut up," Katsuki snapped, small sparks popping off his cuticles. "Don't think that just because you pulled a flashy stunt at the exam, you're better than me. You scored higher on a rigged test. In a real fight, I'll still blast you to ash."

 

"We'll see," Izuku replied, a confident, immovable smile on his face. He didn't cower. Ten years of training against Katsuki's explosions had burned the fear out of him long ago.

 

"Oh! It's you! The heavy-hitter!"

 

Izuku turned toward the doorway. Ochaco Uraraka was standing there, her face lighting up with a brilliant smile. She hurried over, ignoring Katsuki's angry scoff.

 

"I never got to properly thank you after the exam!" Uraraka beamed, clasping her hands together. "That punch was amazing! You saved my life! And you looked so cool doing it!"

 

Izuku felt a light blush dust his cheeks. "It was nothing, Uraraka. I'm just glad you weren't hurt."

 

"If you're just here to make friends, you can pack up your things and leave."

 

The voice was tired, dry, and came from the floor.

 

The students jumped, looking down. Lying in the doorway, encased in a bright yellow sleeping bag, was a haggard-looking man with messy, shoulder-length black hair and a heavy stubble. He unzipped the sleeping bag and stood up, looking like a man who hadn't slept in three weeks.

 

Eraserhead, Izuku recognized instantly. The Underground Hero. His Quirk allows him to erase the Quirks of anyone he looks at. A terrifying opponent in close quarters. Why is an underground hero teaching a homeroom class?

 

"It took you eight seconds to quiet down," Aizawa drawled, stepping up to the podium and pulling a juice pouch from his pocket. "Time is a precious resource. You lot aren't rational enough."

 

He surveyed the class, his deadpan gaze sweeping over the students before pausing for a fraction of a second on Izuku. Aizawa’s eyes narrowed slightly, cataloging the boy's posture, his anchored stance, and the sheer density of his forearms.

 

"I'm your homeroom teacher, Shota Aizawa. Nice to meet you," he said, turning around and pulling a stack of folded blue uniforms from his desk. "Put these P.E. uniforms on and head out to the training grounds. We're doing a Quirk Apprehension Test."

 

The morning sun beat down on the massive dirt track field behind the main U.A. building. Class 1-A stood in a loose cluster, wearing their dark blue and white P.E. uniforms. For Izuku, the short-sleeved shirt meant his arms were fully exposed. Several of his classmates openly stared at the silvery scars crisscrossing his thick forearms, whispering among themselves.

 

"A Quirk Apprehension Test?" Uraraka asked, tilting her head. "But what about the entrance ceremony? Or orientation?"

 

"If you're going to become a hero, you don't have time for such leisurely events," Aizawa said, standing at the edge of a chalk circle. "U.A.'s selling point is how unrestricted its traditions are. That's also how the teachers run their classes."

 

Aizawa held up a device that looked like a modified smartphone. "You kids have been doing these standard fitness tests since junior high. Sit-ups, 50-meter dashes, ball throws. But they always forbid you from using your Quirks. The country's educational system is trying to maintain an 'average' by ignoring the reality of our biology. It's not rational."

 

Aizawa turned his gaze to Katsuki. "Bakugo, you finished second overall in the practical exam, didn't you?"

 

Katsuki scowled at the reminder of his placement, shooting a venomous glare at Izuku. "Yeah."

 

"In junior high, what was your best result for the softball throw?"

 

"Sixty-seven meters."

 

"Try doing it with your Quirk," Aizawa instructed, tossing Katsuki a baseball. "Step into the circle. As long as you don't step out, you can do whatever you want. Don't hold back."

 

Katsuki stepped into the chalk ring. He grinned, a savage, feral expression spreading across his face. He stretched his arms, rolling his shoulders. He didn't just want to throw the ball; he wanted to send a message. He wanted to show Deku, and the rest of these extras, what true, unadulterated power looked like.

 

Katsuki wound up, leaning back, and threw the ball with all his might. As the ball left his fingertips, he triggered his Quirk.

 

"DIE!"

 

A massive explosion erupted from his palm. The sheer concussive force propelled the baseball forward like a rocket, leaving a trail of smoke and fire in its wake. The boom echoed across the field, making several students flinch and cover their ears.

 

Aizawa held up his device, waiting for the ball to land. It beeped. He turned the screen toward the class.

 

705.2 meters.

 

The class erupted in shock.

 

"Seven hundred meters?! That's insane!"

 

"He's got so much power!"

 

"This looks like fun!" a girl with pink skin and horns, Mina Ashido, cheered.

 

"Fun?" Aizawa’s voice cut through the excitement like a frozen blade. He lowered the device, his tired eyes darkening with a terrifying intensity. "You have three years to become heroes. Will you have an attitude like that the whole time? Alright. Let's make this interesting."

 

Aizawa smiled, and it was not a comforting expression. "Whoever comes in last place in all eight tests will be judged to have no potential... and will be punished with immediate expulsion."

 

A collective gasp rippled through the students. Uraraka looked terrified; a green-haired boy, Mineta, looked like he was going to throw up.

 

Izuku didn't flinch. He crossed his arms over his broad chest, his emerald eyes locked onto Aizawa.

 

Immediate expulsion on the first day? Izuku analyzed. It's possible. U.A. has total autonomy. But logically, expelling a student who passed a rigorous entrance exam based on a single day of physical tests is inefficient. He's trying to manufacture a high-stress environment to force us past our psychological limits. He wants to see how we perform when our backs are against the wall.

 

"We're free to do what we want with our students," Aizawa declared, pushing his hair out of his face. "Welcome to U.A.'s hero course!"

 

"But that's unfair!" Uraraka protested. "It's the first day! Even if it wasn't, expelling someone is too harsh!"

 

"Natural disasters, massive accidents, and selfish villains," Aizawa listed coldly. "Calamities whose time or place can't be predicted. Japan is covered with unfairness. Heroes are the ones who reverse those situations. If you wanted to go talk with your friends at McDonald's after school, too bad. For the next three years, U.A. will do all it can to give you one hardship after another. Go beyond. Plus Ultra. Overcome it with all you've got."

 

Aizawa pulled a clipboard out of his sleeping bag. "Demonstration is over. The real thing starts now."

 

Test 1: 50-Meter Dash.

 

Izuku stood at the starting line, staring down the track. Beside him was Tsuyu Asui, a girl with a frog-like mutation.

 

A mechanical voice from the robotic referee sounded. "On your marks... Get set..."

 

Izuku knew he was at a disadvantage here in terms of traditional running. His body was incredibly muscular, yes, but that muscle was highly dense, designed for lifting, anchoring, and absorbing catastrophic impact, not for sprinting. If he tried to run normally, he'd be lucky to clock seven seconds.

 

He needed to adapt.

 

I can't enlarge my hands and use a backward blast like I did in the entrance exam, Izuku calculated. The track is too narrow; the shockwave would blow Asui out of her lane and potentially injure her. I need propulsion without the massive area-of-effect.

 

"Go!"

 

Asui immediately dropped to all fours and leaped forward, covering the distance in massive, amphibious bounds.

 

Izuku didn't run. He dropped into a low crouch and brought his right hand down, pressing the tip of his index finger against the rubberized starting block.

 

Titan Fists: Micro-Focus Expansion.

 

He didn't expand his whole hand. He channeled the Quirk entirely into his index finger. In a fraction of a second, the finger swelled to the thickness of a baseball bat, the skin hardening into dark steel.

 

With a sharp grunt, Izuku flicked the starting block.

 

The sheer kinetic force of the ultra-dense, massively expanded finger snapping against the rubber acted like a coiled spring. The starting block cracked, and Izuku was launched forward like a cannonball.

 

He flew parallel to the ground, the wind rushing past his ears. As gravity began to pull him down halfway down the track, he reached out with his left hand, expanding just his left index finger to the size of a bat, and flicked the ground again. The kinetic pop propelled him the rest of the way.

 

He crossed the finish line, instantly shrinking his fingers and tumbling into a controlled roll to bleed off the momentum. He popped up onto his feet, dusting himself off.

 

"3.12 seconds!" the robot declared.

 

Izuku nodded, satisfied.

 

A few yards away, Aizawa lowered his clipboard. His tired eyes were wide with genuine surprise.

 

He isolated the mutation to a single appendage, Aizawa noted internally, his mind racing. The entrance exam footage showed him as a human wrecking ball. I assumed his Quirk was a blunt instrument—an all-or-nothing mass expansion that shattered his own bones because he couldn't control the weight. But this... this is surgical precision. He's using localized mass to manipulate kinetic energy and bypass his own lack of natural speed. Fascinating.

 

Test 2: Grip Strength.

 

The class moved to an indoor facility where several electronic grip-strength dynamometers were laid out.

 

Mezo Shoji, a tall boy with multiple arms, squeezed his machine. It beeped. 540 kg.

 

"Five hundred and forty kilos?! Are you a gorilla? An octopus?" Mineta shrieked.

 

Izuku stepped up to a machine. He picked it up with his right hand. The device looked absurdly small in his thick, calloused palm.

 

I need to be careful, Izuku thought. The machine is made of reinforced plastic and steel springs. If I expand my hand even a fraction of an inch, the sheer volume of my fingers will shatter the casing before the pressure plate even registers the force.

 

He didn't expand his hand. He didn't increase his size.

 

Instead, he focused inward. Dr. Tsubasa had explained that his Quirk didn't just increase size; it increased molecular density. Izuku closed his eyes and triggered the secondary aspect of his mutation without the primary. He visualized the muscle fibers in his forearm and hand tightening, condensing, drawing closer together until they were as hard as titanium.

 

His forearm bulged, the silvery scars stretching taut as the veins turned a deep, bruised purple.

 

Izuku squeezed.

 

He didn't squeeze hard. To him, it felt like he was merely making a firm fist.

 

The machine let out a high-pitched, metallic squeal. The reinforced plastic casing warped, turning white at the edges. The steel spring inside groaned in absolute agony.

 

The digital screen skyrocketed. 100... 300... 600... 900...

 

With a sharp CRACK, the dynamometer shattered in his hand. Pieces of plastic and springs clattered to the floor.

 

Izuku instantly released his Quirk, his muscles relaxing. He looked down at the broken remains of the machine in his palm, wincing sheepishly.

 

He looked up at Aizawa. "Um. Sir. I think I broke it."

 

Aizawa walked over, his face unreadable. He picked up the cracked digital display from the floor. The screen was flickering, but the final recorded number was frozen in place.

 

999+ kg (Error: Overload).

 

The entire class was dead silent. Even Katsuki was staring at Izuku’s hand, a bead of sweat rolling down the explosive boy’s cheek. He knew Deku hit hard, but raw, static grip strength of over a metric ton? If Deku ever got a hold of him, explosions wouldn't matter. He would be crushed.

 

Aizawa tossed the broken screen into a nearby trash can. "Just record it as a thousand kilos and move on, Midoriya."

 

As Izuku walked away, Aizawa watched him. He didn't expand his mass. He increased his internal density to generate sheer, localized crushing force without altering his physical dimensions. His control over this Quirk is terrifyingly absolute.

 

Test 3 & 4: Standing Long Jump and Repeated Side Steps.

 

Izuku performed adequately in these tests, but he didn't break any records. For the long jump, he used the same finger-flick propulsion technique, clearing the sandbox easily, though not as flawlessly as Aoyama, who used his navel laser to fly.

 

For the side steps, Mineta dominated, bouncing endlessly between his sticky purple balls. Izuku, aware that his dense musculature made rapid lateral shifts difficult, relied on solid, grounded footwork. He scored above average, utilizing the momentum techniques All Might had taught him, ensuring he didn't tear his own ACLs under his heavy frame.

 

Test 5: The Softball Throw.

 

This was the climax. The sun was high overhead, casting short shadows across the chalk circle.

 

Uraraka stepped up. She touched the ball, removing its gravity, and threw it. The ball sailed up into the sky and never came down.

 

"Infinity," Aizawa’s device read. The class cheered.

 

"Alright," Aizawa drawled. "Midoriya. You're up."

 

Izuku walked toward the circle. The atmosphere in the class shifted. They had seen his speed and his terrifying grip strength, but throwing a ball was about raw, kinetic projection. They wanted to see exactly how much power the heavyweight of Class 1-A truly possessed.

 

As Izuku stood in the circle, rolling his thick shoulders, Aizawa watched him with eagle eyes. His hand hovered over his capture scarf, his Quirk ready to activate.

 

I watched the entrance exam footage closely, Aizawa thought, his eyes narrowing. He obliterated a building-sized robot with a single punch. But doing so shattered his right arm. It dislocated his shoulder and caused micro-fractures all along his radius and ulna. His Quirk, when pushed to its maximum, generates a localized mass so great that it creates a gravitational singularity that his own bones cannot support.

 

Aizawa gripped his scarf tightly. If he tries to use that same suicidal level of power just to get a high score on a softball throw, I will erase his Quirk before he can throw it. I won't allow a student who breaks themselves for a parlor trick to remain in my class. Self-sacrifice is noble, but relying on it is irrational.

 

Izuku stood in the circle, holding the baseball in his right hand.

 

He wasn't thinking about maximum overdrive. He wasn't thinking about the Zero Pointer. He was thinking about physics, and he was thinking about All Might.

 

Kacchan got 705 meters using the concussive force of an explosion, Izuku analyzed, taking a deep breath and relaxing his stance. To beat that, I need to generate an immense amount of centrifugal force. If I expand my hand to the size of a car, the sheer weight will throw out my back during the torsion of the throw. I need a medium expansion, coupled with perfect kinetic transfer.

 

Izuku planted his left foot forward, turning his body sideways. He held the baseball in his right hand and drew his arm back.

 

He didn't activate his Quirk yet.

 

Aizawa watched closely, his eyes unblinking, the red glow of his Erasure Quirk bleeding into his irises. He's winding up. When is he going to activate it?

 

Izuku pivoted on his back foot. He drove his hips forward, turning his torso. His right arm snapped forward like a whip.

 

Only in the very last millisecond, right as his arm reached the apex of the throw, did Izuku activate Titan Fists.

 

He didn't go for a house. He didn't go for a car.

 

He expanded his right hand to the size of a massive tractor tire.

 

The activation was instantaneous, accompanied by that terrifying, bass-dropping THOOM. The sudden, violent introduction of a thousand pounds of hyper-dense mass at the very end of a whip-like mechanical motion created a catastrophic spike in centrifugal force.

 

Izuku didn't try to hold the weight. He used the momentum of his hips to let the massive hand pull his arm forward, acting as a flawless pendulum.

 

As the giant fingers released the baseball, the sheer speed and mass of the hand broke the sound barrier.

 

CRACK-BOOOOOOM!

 

A sonic boom erupted in the center of the U.A. track field. A localized shockwave of displaced air blasted outward. The grass was flattened in a fifty-yard radius. Aizawa’s hair was violently blown back, his capture scarf whipping in the sudden gale.

 

The baseball was launched from the giant hand with the velocity of an artillery shell. It left a visible vapor trail as it tore through the sky, completely vanishing into the clouds in less than a second.

 

Izuku let the momentum of the giant hand carry his arm down in a smooth, sweeping arc toward the ground. Right before his knuckles brushed the grass, he deactivated his Quirk. His hand shrank instantly back to normal size, hissing with steam, and Izuku smoothly returned to a standing position, completely unharmed.

 

He let out a slow, controlled breath, rubbing his right shoulder. No pain. Just the satisfying hum of well-executed biomechanics.

 

Silence hung over the field, heavier than Izuku's fists.

 

The students were paralyzed. They hadn't just seen a throw; they had felt it in their teeth. The shockwave had rattled their bones.

 

Aizawa stood perfectly still, his hair slowly settling back down around his shoulders. The red glow had faded from his eyes. He hadn't used his Quirk. He hadn't needed to.

 

Aizawa looked down at his device. The GPS tracker inside the ball took a few seconds to calculate the distance. Finally, the machine beeped.

 

Aizawa slowly turned the screen around for the class to see.

 

805.3 meters.

 

"He... he broke eight hundred meters," Denki Kaminari whispered, his jaw practically hitting the dirt.

 

"And he didn't even use an explosion!" Eijiro Kirishima cheered, throwing his fists in the air. "That's just raw, manly power! He threw it like a cannon!"

 

Aizawa looked at Izuku. The boy wasn't clutching a broken arm. He wasn't panting from exertion. He was just standing there, looking calmly at his teacher, waiting for the next instruction.

 

I was wrong, Aizawa admitted to himself, a profound sense of respect blossoming in his chest. He isn't a reckless brawler. He only broke his arm against the Zero Pointer because the situation absolutely demanded it. Here, in a controlled environment, he perfectly modulated his mass, his density, and his momentum to achieve maximum output with zero self-damage. He is in complete, terrifying control of his own power.

 

"You're not a rational student, Midoriya," Aizawa said, a very small, almost invisible smirk touching his lips. "You're a physicist."

 

Izuku offered a small, polite bow. "Thank you, sir."

 

"DEKU!"

 

The roar was demonic.

 

Izuku turned just in time to see Katsuki charging at him. The explosive blonde was practically foaming at the mouth, his eyes wide with absolute, unhinged fury. Sparks were igniting off his palms as he lunged, ready to blast Izuku point-blank.

 

"Tell me how you did that! Tell me how you beat my score! What the hell kind of trick was that?!" Katsuki screamed.

 

Izuku didn't raise his guard. He just looked at Katsuki, his emerald eyes cold and unyielding.

 

Before Katsuki could close the distance, a gray cloth wrapped tightly around his torso, pinning his arms to his sides. Katsuki was jerked backward, struggling wildly.

 

"What the...?! This cloth is stiff!" Katsuki yelled, trying to ignite his explosions, but finding his Quirk completely unresponsive.

 

"They're weapons for capture made of carbon fibers woven with metal wire made of a special alloy," Aizawa said coldly. He was holding the end of the scarf, his eyes glowing a fierce red, his hair levitating around his head. "Stop using your Quirk. I've got dry eye."

 

"Eraserhead," Izuku muttered, nodding to himself. "So that's how he controls the class."

 

Aizawa blinked, deactivating his Quirk, his hair falling flat. He unraveled the scarf, releasing Katsuki. "We're wasting time. Whoever is next, step up."

 

Katsuki stood there, his chest heaving, his eyes locked onto Izuku. The realization was crashing down on him. Deku wasn't just catching up. Deku was pulling ahead. The mountain Katsuki had sworn to climb was growing taller by the second.

 

Izuku met his gaze, offering no apology, no smugness. Just the quiet, heavy reality of his own strength.

 

The rest of the tests passed quickly. When they were finished, the sun was beginning to set, painting the sky in strokes of violent orange and purple.

 

Class 1-A gathered in front of Aizawa, exhausted and anxious.

 

"I'll quickly present the results," Aizawa said, tapping on his holographic device. "The total is simply the marks you got from each test. It's a waste of time to explain verbally, so I'll show you the whole list at once."

 

A large holographic scoreboard materialized in the air.

 

Izuku's eyes scanned the list.

 

1. Momo Yaoyorozu

2. Izuku Midoriya

3. Shoto Todoroki

4. Katsuki Bakugo

 

Izuku let out a breath he didn't know he was holding. Second place. Yaoyorozu must have used her Creation Quirk flawlessly across all the varied tests to edge him out in overall utility, but he had undeniably dominated the pure power metrics. He had beaten Kacchan.

 

At the very bottom of the list, at rank 20, was Minoru Mineta. The small boy fell to his knees, openly weeping. "No! My harem dream! It's over!"

 

Aizawa put his device away. "By the way, I was lying about the expulsion."

 

The class froze.

 

"It was a rational deception to draw out the upper limits of your Quirks," Aizawa said, a sadistic, wide grin stretching across his tired face.

 

"WHAT?!" half the class screamed.

 

"Of course it was a lie," Yaoyorozu sighed, pinching the bridge of her nose. "It should have been obvious if you just thought it through."

 

No, it wasn't a lie, Izuku thought, catching Aizawa’s eye. He fully intended to expel someone if they didn't meet his standards. He just saw that everyone here, even Mineta, had the drive to push past their limits. He's a harsh teacher, but he cares about potential.

 

"With that, we're done here," Aizawa said, turning to walk away. "There are handouts with the syllabus and such in the classroom. When you get back, look them over."

 

As the class dispersed, buzzing with relief and excitement, Izuku hung back. He looked down at his right hand. He flexed his thick fingers, feeling the immense, crushing power resting dormant beneath the skin.

 

Today, he had proven to his teacher, to his classmates, and to his rival that he belonged here. He wasn't just a hazard. He wasn't just a blunt object. He was a hero in training.

 

"Hey, Midoriya!"

 

Izuku turned. Uraraka and Iida were jogging over to him.

 

"We're going to walk to the station together! Do you want to come?" Uraraka asked, her smile bright.

 

Izuku looked at them, realizing for the first time in his life, people weren't staring at his scarred, massive arms with fear. They were looking at him with respect, and with friendship.

 

"Yeah," Izuku smiled, the weight of the day suddenly feeling a lot lighter. "I'd like that."