What If Deku And A Few Of His Classmates Became The Fantastic 4

 

The scent of burning ozone, stale coffee, and molten solder was the only air Izuku Midoriya had breathed for the last seventy-two hours. 

Development Studio 1 of U.A. High School’s Support Department was a cavernous, subterranean hangar, normally bustling with the chaotic energy of teenage prodigies building jetpacks, power armor, and capture weapons. But at three in the morning, it belonged solely to Izuku. 

He sat hunched over a vast workstation, his face bathed in the harsh, blue-white glow of a half-dozen holographic monitors. His fingers, wrapped in callouses and blistered from hot-glue and exposed wiring, flew across the keyboard. Equations, telemetry data, and atmospheric density charts reflected in his wide, bloodshot emerald eyes. 

"Come on, come on..." Izuku muttered, his voice a dry rasp. He tapped a pencil furiously against his desk, the erratic rhythm echoing in the empty lab. "The baryonic shifts don't match the standard model. If the Quirk Singularity Theory is right, the genetic degradation should peak in three generations. But if this energy signature is what I think it is..."

He hit a keystroke. The central monitor shifted, displaying a rotating, three-dimensional rendering of Earth. Just above the thermosphere, a massive, swirling anomaly pulsed in shades of ultraviolet and bruised purple. 

Izuku leaned in, his breath catching. It wasn't just a storm. It was a localized, high-density cloud of pure, unadulterated cosmic radiation, possessing the exact same subatomic frequency as the human Quirk Factor. It was the missing link. For years, Izuku—a Quirkless boy in a superhuman society—had dedicated his impossibly brilliant mind to solving the ultimate problem: The Quirk Singularity Doomsday Theory. The idea that Quirks would eventually become too complex, too powerful for the human body to contain, leading to the extinction of the species. 

No Pro Hero could punch the Singularity. No amount of peace could negotiate with genetics. It was a problem only science could solve. And the answer was floating just outside the Earth's atmosphere.

"Midoriya!"

Izuku jolted, his knee slamming into the underside of his desk. He scrambled to catch his falling coffee mug, failing miserably as dark liquid splashed across a stack of blueprints. 

Mei Hatsume dropped from the ceiling rafters, hanging upside down by a pair of customized magnetic boots. Her dreadlocks dangled in his face, her steampunk goggles whirring as the lenses zoomed in on his face. 

"You're redlining again, Ten Million!" Mei chirped, dropping gracefully to the floor and wiping a smear of grease from her cheek. "Power Loader says if you don't sleep, your brain is gonna melt out of your ears. And I need your brain intact! Who else is going to calibrate the thruster gimbals on my new baby?"

Izuku offered a weary, apologetic smile, frantically dabbing at the spilled coffee with a rag. "Sorry, Hatsume. I just... I ran the predictive models again. The storm is accelerating."

Mei leaned over his shoulder, her yellow eyes scanning the monitors. Her usual chaotic demeanor sobered slightly. She and Izuku had spent the last two years constructing the Prometheus, a highly advanced, sub-orbital spacecraft designed to withstand extreme atmospheric pressures and harvest raw data from this exact anomaly. 

"Accelerating?" she asked, tapping a grease-stained nail against the screen. "That wasn't in the forecast. According to this telemetry, it's going to pass through the orbital insertion window..."

"Tonight," Izuku finished grimly. "By 0400 hours tomorrow, the cloud will drift beyond our satellite network's reach, and its trajectory suggests it will slingshot around the moon and out of the solar system. It’s a once-in-a-millennium celestial event, Hatsume. The raw Quirk-energy out there... it could hold the blueprint to stabilizing human genetics. We could cure the Singularity. We could save everyone."

"Yeah, well, saving everyone is gonna have to wait until we get the green light from the suits," Mei sighed, stretching her arms above her head. "The Hero Public Safety Commission is doing their final review at noon today. If they approve the flight, we can launch the Prometheus by next month. We'll just have to hope the cloud comes back."

Izuku’s jaw tightened. "It won't come back. The math is absolute. It has to be tonight."

"Midoriya," a new, grating voice echoed from the entrance of the lab. 

Izuku and Mei turned to see a tall, blonde youth stepping into the hangar. He wore the standard U.A. uniform, but tailored to an immaculate, suffocating degree of perfection. His hair was impeccably swept to the side, and a look of practiced disdain rested on his aristocratic features. 

Neito Monoma. 

He wasn't a Support student. He was a student from Class 1-B, but more importantly, he was the student liaison for the Hero Public Safety Commission’s grant program. Because of his intellect and his Quirk—Copy, which allowed him to understand the nuances of any power he touched—the Commission had installed him to oversee the U.A. aerospace project. He was the bureaucratic watchdog assigned to keep the eccentric geniuses on a short leash. 

"Monoma," Izuku said, standing up, his muscles aching from the sudden movement. "What are you doing here at this hour?"

"I could ask you the same question, though I assume the answer is 'wasting U.A.'s electricity'," Monoma sneered, walking over and inspecting a stray circuit board as if it were a dead rat. "I received an alert that the main servers were being taxed. I should have known it was the Quirkless wonder, chasing ghosts in the sky."

Izuku bit his tongue. He had learned long ago that reacting to Monoma’s barbs only fueled the blonde's superiority complex. "I was just finalizing the data for the Commission's review today. The storm’s trajectory has shifted. We need to expedite the launch of the Prometheus."

Monoma stopped, turning his pale blue eyes toward Izuku. A cold, mocking smile spread across his face. "Expedite? Oh, Midoriya. How adorably naive. You haven't checked your U.A. inbox, have you?"

A pit of ice formed in Izuku's stomach. He quickly tabbed over to his email client. There, sitting at the top of the queue, was a message stamped with the seal of the Hero Public Safety Commission. 

Subject: Project Prometheus - TERMINATION OF FUNDING.

"No," Izuku whispered, his eyes frantically scanning the text. "No, this can't be right..."

"The Commission has reviewed your proposal," Monoma said, his voice dripping with condescension. "And they've determined that your little 'Singularity' crusade is a waste of capital. A sub-orbital launch to study a localized weather anomaly provides no immediate tactical advantage for Pro Heroes. No new weapons, no new capture gear, no PR boosts. Just a Quirkless boy wanting to play astronaut."

"It's not just weather!" Izuku slammed his hands on the desk, startling even Mei. "Monoma, look at the data! The radiation matches human Quirk Factors! If we can synthesize a dampener from that cloud, we can prevent Quirks from tearing human bodies apart in the next century! This is about the survival of the human race!"

"The Commission deals in the present, Midoriya. Not in the science fiction of a boy trying to overcompensate for his genetic deficiencies," Monoma replied, his tone hardening. "The project is dead. The Prometheus will be dismantled and its parts repurposed for actual Hero Support items. U.A. security will be down here at 0800 to lock up the hangar. Go home, Midoriya. The dream is over."

With a final, dismissive scoff, Monoma turned on his heel and walked out of the lab, his polished shoes clicking sharply against the concrete floor. 

Silence descended on the hangar, heavy and suffocating. 

Mei looked at Izuku, her usual boundless optimism completely drained. "Midoriya... I'm sorry. We built a beautiful baby, but... if the Commission pulled the plug, Principal Nezu can't override it. They own the patent rights to the thrusters."

Izuku stood frozen, staring at the termination email. Years of work. Years of enduring the whispers, the mockery, the endless reminders that he was just a useless, Quirkless Deku. He had poured his soul into the Prometheus. It was his way of being a hero. He didn't need to punch villains if he could save the entire future of humanity. 

He looked back at the holographic projection of the Earth. The purple storm swirled, mocking him, slipping closer to the edge of its departure window. 

If I let it go, Izuku thought, his heart pounding a frantic rhythm against his ribs. If I let it go, humanity loses its only chance. The Singularity will happen. People will die.

Slowly, Izuku reached out and closed the email. He closed the browser. He brought the launch telemetry back to the main screen. 

"Hatsume," Izuku said, his voice eerily calm. 

"Yeah?" 

"Is the Prometheus fueled?"

Mei blinked. "I mean, yeah. We finished the liquid hydrogen loading protocol yesterday morning for the dry-run test. But..." She stopped, her eyes widening as she realized what he was asking. "Midoriya. No. No way. You're not suggesting what I think you're suggesting."

"The launch window opens in two hours, at 0515," Izuku said, his fingers flying across the keyboard, bypassing the U.A. network locks and isolating the hangar's internal grid. "If the Commission locks us out at 0800, then we don't have a ship. We launch now."

"That's grand theft aerospace!" Mei squawked, grabbing her dreadlocks. "That's treason! That's expulsion! Midoriya, I love breaking the rules, but stealing a multi-billion yen spacecraft is a bit outside my comfort zone!"

"I take full responsibility," Izuku said, turning to look at her, his green eyes burning with a fierce, uncompromising fire. It was a look Mei had rarely seen—the look of a true hero willing to sacrifice everything. "I'll leave a manifesto. I'll say I hijacked the systems. You were just an innocent bystander. But I need you to release the physical docking clamps. I can't do that from the terminal."

Mei stared at him. She looked at the terminal, then back at the boy who had spent countless nights mapping the stars with her. A slow, manic grin spread across her grease-smudged face. 

"To hell with the Commission," Mei laughed, slamming her goggles down over her eyes. "I didn't build a spaceship to let it collect dust. You get the nav-computer online. I'll prep the bay doors."

As Mei sprinted toward the engineering bay, Izuku pulled out his phone. He couldn't pilot the ship and manage the internal G-force dampeners alone. The Prometheus was designed for a crew of three. He needed people he trusted with his life. People crazy enough to believe in him.

He dialed the first number. It rang three times before a groggy, soft voice answered.

"Deku...? It's... it's three in the morning..."

"Uraraka," Izuku said, trying to keep his voice steady. "I need your help. It's an emergency."

In her dorm room at U.A. Heights Alliance, Ochaco Uraraka sat up, instantly awake. The exhaustion vanished from her round face, replaced by fierce concern. Izuku Midoriya was the boy who had saved her during the entrance exam, the boy who had become her closest friend and confidant. If he was calling, it was serious. 

"I'm awake. What's wrong? Is it a villain?"

"No," Izuku said. "It's the Prometheus. The Commission pulled the funding. They're shutting us down in a few hours."

Ochaco gasped. She knew how much this meant to him. She had spent hours listening to him ramble excitedly about the stars, about the future. "Deku, I'm so sorry. What can I do?"

"I'm launching it," Izuku said bluntly. "Tonight. Right now."

There was a long silence on the line. 

"You're... you're stealing a spaceship?"

"Yes. And I need you. Uraraka, the automated gravity-dampeners were never approved for live testing. If I hit the thermosphere at Mach 15 without proper stabilization, the G-forces will crush me. I need your Zero Gravity Quirk to stabilize the cockpit during the ascent." He paused, his voice softening. "It's incredibly dangerous. If we're caught, you'll be expelled. You'll lose your hero license. I have no right to ask you this."

Ochaco looked at her hero costume hanging in her closet. She thought about her parents, and the money she wanted to make to help them. Then, she thought about Izuku. His relentless drive, his brilliant mind, the way he looked out for everyone but himself. 

She didn't hesitate. "Where do you need me?"

Izuku let out a breath he didn't know he was holding. "Development Hangar 1. Use the maintenance tunnels. Don't let anyone see you."

"I'm on my way."

Izuku hung up and dialed the second number. This one only rang once.

"Midoriya! What's the word, bro?" Eijiro Kirishima's booming, energetic voice poured through the speaker. The red-haired boy sounded like he had just been doing push-ups. 

"Kirishima, I need your help, but it's completely off the books. It's highly illegal."

"Say no more, bro!" Kirishima replied instantly, the sound of a zipper echoing in the background. "A man never turns his back on a friend in need. Who are we fighting?"

"Not a who. A what. I need your Hardening Quirk. I'm launching the Prometheus tonight without authorization. Hatsume is unlocking the docking clamps, but the primary fuel umbilical is jammed. We need someone strong enough, and durable enough, to manually detach the liquid hydrogen hose while the thrusters are in pre-ignition. The heat will be intense."

"A spaceship? We're stealing a spaceship?!" Kirishima’s voice pitched up in excitement. "That is so insanely manly! I'll be there in five minutes!"

Izuku hung up, his hands shaking slightly. He was really doing this. He was crossing the line from student to rogue. But as he looked at the telemetry data, at the impending doom of the Quirk Singularity looming over future generations, he knew he was making the right choice. 

By 0430, the subterranean hangar was alive with mechanical roaring. The Prometheus sat in the center of the silo, a sleek, silver dart of advanced engineering, its hull gleaming under the floodlights. Vents hissed, spewing clouds of supercooled vapor as the engines warmed up.

Izuku stood at the base of the boarding ramp, wearing a customized, pressurized Support Course flight suit. He was running through a physical checklist on a tablet when a soft thud caught his attention. 

Ochaco Uraraka stood there, out of breath, wearing her pink and black hero suit, modified with a high-altitude helmet under her arm. Her brown eyes were wide as she took in the sheer size of the shuttle. 

"Deku..." she breathed, jogging over to him. "It's... it's huge. I've only seen the schematics."

"It's heavier than it looks," Izuku smiled nervously. "Thank you for coming, Uraraka. You really didn't have to."

"Try and stop me," she grinned, playfully punching his shoulder. "Though, if we end up in jail, you're paying my bail."

"I've got the bail covered!" Eijiro Kirishima bounded out of the shadows of the maintenance tunnel, wearing his crimson hero gear, his gears already turning as he flexed his arms. "This is incredible, Midoriya! A real-life space launch! So, where's this jammed umbilical cord?"

Izuku pointed toward the massive, frost-covered hose attached to the lower fuselage. "Right there. Once Hatsume initiates the pre-burn, the heat shielding around the port will retract. You'll have exactly ten seconds to rip it out and clear the blast zone before the main thrusters ignite. If you're too slow..."

"I'll be extra crispy. Got it!" Kirishima grinned, slamming his fists together. His skin erupted into jagged, hardened rock. "Don't sweat it, bro. My Hardening can take a little rocket fire."

"Alright. Everyone board the ship. Kirishima, wait for my signal." Izuku turned to head up the ramp. 

"Hold it right there, you damn nerd!"

The voice echoed through the hangar like a gunshot. 

Izuku froze. Slowly, he turned around. 

Standing on the catwalk above the hangar floor, hands shoved deep into the pockets of his baggy U.A. uniform pants, was Katsuki Bakugo. His spiky ash-blonde hair bristled with anger, and small, warning explosions popped in the palms of his hands. 

"Kacchan," Izuku breathed, his stomach plummeting. 

Bakugo vaulted over the railing, using a small explosion to cushion his fall, landing heavily on the steel floor. He stalked toward Izuku, his crimson eyes locked onto his childhood rival with a mix of fury and fierce curiosity. 

"You've been acting like a twitchy little rat for three days, Deku," Bakugo snarled, stopping inches from Izuku's face. "Skipping meals, ignoring everyone, muttering to yourself even more than usual. I knew you were up to something. But grand theft spaceship? You've really lost your damn mind."

"Bakugo, you don't understand," Izuku said, standing his ground. "The Commission pulled the funding. This is my only chance to study the cosmic anomaly. It could cure the Singularity. I have to go."

"I don't give a crap about your nerd science!" Bakugo yelled, jabbing a finger into Izuku's chest. "What I care about is you trying to do something epic without me! You think you can just fly off into space and become a legend while I'm stuck down here doing homework? No way in hell. If anyone is going to be the first U.A. student in space, it's me!"

"Kacchan, this isn't a competition! It's a scientific mission. It's incredibly dangerous!"

"Dangerous?" Bakugo laughed, a harsh, barking sound. He shoved past Izuku and marched straight up the boarding ramp. "Good. I was getting bored. I'm coming with you."

"Bakugo, wait!" Ochaco grabbed his arm, but he shook her off. 

"Shut it, Round Face. I'm the best flyer U.A. has. If this hunk of junk goes out of control, you'll need my explosions to correct the trajectory. Now, where do I strap in?"

Izuku rubbed his temples, a massive headache blooming behind his eyes. He didn't have time to argue. The launch window was closing. "Fine. Fine! But you do exactly what I tell you, Kacchan. Understand?"

"I don't take orders from you, Deku. Just fly the damn ship."

Izuku, Ochaco, and Bakugo hurried into the Prometheus. The cockpit was a marvel of Hatsume's engineering—sleek, aerodynamic, and crammed with enough processing power to run a small city. Izuku strapped into the pilot's seat, his hands flying across the illuminated controls. Ochaco strapped into the co-pilot seat to his right, and Bakugo begrudgingly strapped into the engineering station behind them. 

"Hatsume, do you copy?" Izuku spoke into his headset. 

"Copy loud and clear, Ten Million!" Hatsume's voice crackled. "The roof silo doors are opening! Pre-burn in T-minus two minutes!"

Above them, the massive ceiling of the subterranean hangar began to part, revealing the star-studded night sky over U.A. High. 

Suddenly, a red warning light flashed on Izuku's dashboard. UNAUTHORIZED ACCESS - EXTERNAL AIRLOCK COMPROMISED.

"What?" Izuku frowned, pulling up the security feed. 

On the screen, Neito Monoma was forcing his way through the external airlock at the base of the ship. He was breathing heavily, a customized tablet in his hand. 

"Monoma?!" Izuku yelled over the intercom. "What are you doing?!"

"Stopping you from ruining my immaculate record, you Quirkless idiot!" Monoma's voice hissed through the comms. He stepped into the lower cargo bay, looking around with a sneer. "I saw the power grid spike. Did you really think you could outsmart me? I'm initiating a hard lockdown on the main thrusters right now. You're all expelled."

Monoma plugged his tablet into a wall terminal in the cargo bay. 

"Deku, he's overriding the launch sequence!" Ochaco warned, her fingers flying over her own console. "He's shutting down the liquid hydrogen pumps!"

"Hatsume!" Izuku yelled. "Override him!"

"I can't! He's using the Commission's master codes!" Hatsume shouted back. "He's locked the system! If you don't launch right now, the engines will flood and the ship will explode on the pad!"

Izuku's heart hammered against his ribs. He looked at the timer. The launch window was perfect. If they didn't go now, they never would. 

"Kirishima!" Izuku screamed into the radio. "Rip the cord! Now!"

Outside, Kirishima hardened his entire body, his muscles expanding into jagged crags. He grabbed the massive, frost-covered umbilical cord and roared, pulling with all his might. The metal shrieked and sparked. With a final, explosive heave, Kirishima tore the hose free. 

Liquid hydrogen sprayed into the air. 

"I got it!" Kirishima yelled, stumbling backward. "Go, go, go!"

"Hatsume, bypass the digital lock! Manual ignition!" Izuku ordered, slamming his hand down on the large, red ignition sequence button. 

"Lighting the candle!" Hatsume cheered. 

In the cargo bay, Monoma looked up from his tablet, his eyes widening in pure horror as the ship began to vibrate violently beneath his feet. "Wait... no! You can't! I'm still inside! Midoriya, abort! ABORT!"

"It's too late, Monoma! Strap into a jump seat, now!" Izuku commanded. 

The world outside the cockpit window erupted into blinding white light. The Prometheus trembled like a leaf in a hurricane. 

A deafening roar consumed all sound as the main thrusters ignited, generating millions of pounds of thrust. The G-forces hit instantly, slamming Izuku, Ochaco, and Bakugo back into their seats with the weight of an elephant. 

"Uraraka! Now!" Izuku gasped out, his face contorting under the pressure. 

Ochaco pressed her fingertips to the console, activating her Quirk. "Zero Gravity: Full Release!" A wave of pink energy washed over the cockpit. The crushing weight instantly lessened, allowing them to breathe, though the violent shaking of the ship threatened to rattle their teeth loose. 

"This is awesome!" Bakugo roared over the noise, a manic grin stretching across his face as he looked out the window. "Faster, Deku! Faster!"

In the lower cargo bay, Monoma wasn't so lucky. Unstrapped and outside the range of Uraraka's Quirk, he was thrown violently against the bulkhead, his head cracking against a steel pipe. He collapsed to the floor, groaning as the immense G-forces pinned him to the metal grating.

The Prometheus tore through the night sky, a spear of fire cutting through the clouds. The altimeter spun wildly. Ten thousand feet. Thirty thousand feet. Sixty thousand feet. 

The sky outside shifted from pitch black to a deep, bruised violet, and then, suddenly, to a vast, endless sea of stars. The violent shaking stopped, replaced by a smooth, terrifying silence. 

They had broken the atmosphere. They were in space. 

Izuku let out a long, shuddering breath. He unclasped his five-point harness and floated slightly upward, held back only by his tether. He looked out the reinforced glass window. 

The Earth sat below them, a breathtaking marble of blue and white. It was the most beautiful thing he had ever seen. 

"We did it," Ochaco whispered, floating beside him, her eyes wide with wonder. "Deku... we actually did it."

"Don't start celebrating yet, nerds," Bakugo muttered, though even he couldn't hide the awe in his eyes as he stared at the stars. "Where's this magic space cloud you were crying about?"

Izuku snapped back to reality. He pulled himself down into his seat and activated the scanners. "Right. The anomaly should be directly ahead of our trajectory. Coordinates locked. Distance is..."

He frowned, tapping the screen. 

"What is it?" Ochaco asked, noticing his shift in tone. 

"The telemetry is wrong," Izuku muttered, a cold sweat breaking out on his forehead. "The cloud... it's not where it's supposed to be."

"Did you miscalculate?" Bakugo sneered. 

"No! My math was perfect!" Izuku’s fingers flew across the keyboard, desperately running the scans again. "It's... it's moving. It's accelerating toward us."

Suddenly, the proximity alarms in the cockpit began to scream. Blaring red lights bathed the cabin in a hellish glow. 

Out the front window, the darkness of space was suddenly blotted out. A massive, swirling storm of cosmic energy—glowing with violent purples, blinding golds, and crackling crimson lightning—loomed over them. It wasn't just a cloud. It was a tsunami of raw, primordial power, vast enough to swallow a moon. 

"Turn us around!" Bakugo yelled, his awe instantly replaced by primal instinct. He unbuckled and scrambled toward the controls. "Deku, turn the damn ship around!"

"I can't!" Izuku shouted, pulling frantically on the yoke. "It's generating a localized gravitational pull! It's dragging us in!"

Down in the cargo bay, Monoma slowly regained consciousness. The ship was groaning, the metal twisting under unimaginable stress. He looked out a small porthole and let out a scream of pure terror as the cosmic storm engulfed the glass. 

"Shields are failing!" Ochaco cried out, her hands flying over her console. "Radiation levels are spiking! Deku, the hull wasn't built to withstand this much energy!"

"I know! I know!" Izuku yelled, his mind racing, trying to find a solution, a mathematical equation, anything to save them. But there was no math for this. The cosmos didn't care about his intellect. 

The storm hit them. 

It didn't sound like a crash. It sounded like a choir of a billion voices screaming at once. The Prometheus plunged into the heart of the anomaly. 

A wave of blinding, iridescent energy shattered the reinforced glass of the cockpit, though there was no loss of oxygen—the energy itself seemed to solidify around them. 

Izuku felt the cosmic radiation pierce his flight suit, pierce his skin, and burn straight into his DNA. It was an agony unlike anything he had ever felt. It felt as though every molecule in his body was being pulled apart, stretched across the infinite expanse of the universe. He looked at his hands, watching in horror as his fingers elongated, stretching like melting wax toward the dashboard. 

Beside him, Ochaco was screaming, but she was fading. Her physical form was dissolving into pure, refracting light, becoming entirely transparent. 

Behind them, Bakugo roared in agony. The energy struck him, igniting his sweat glands. But instead of a localized explosion, his entire body erupted into blinding, white-hot plasma. He was burning, consumed by a fire that didn't consume him. 

Down in the cargo bay, Monoma was thrown against a power conduit. The cosmic energy fused with the ship's electrical grid, surging into his body. His Quirk, desperate to survive, tried to copy the infinite energy of the storm. The resulting feedback loop shattered the conduit, blasting Monoma in the face with a shower of molten steel and cosmic radiation. His screams echoed through the dying ship. 

And back on Earth, standing on the U.A. launchpad, Eijiro Kirishima watched the sky light up with a terrifying, unnatural aurora. 

"Midoriya?" Kirishima whispered into his comms. "Midoriya, do you copy?"

Only static answered him. Up in the stars, the Prometheus vanished into the storm, carrying four souls into a baptism of fire, light, and unimaginable power. The world would never be the same. The age of Quirks was about to meet the age of the Fantastic.

Space was not supposed to scream. 

As the Prometheus plunged into the heart of the anomaly, the absolute silence of the vacuum was shattered by a sound that defied the laws of physics. It was a roar that vibrated not through the air, but through the very atomic structure of the U.A. spacecraft. It sounded like the grinding of tectonic plates, mixed with the shrieking feedback of a billion amplifiers. 

Izuku Midoriya sat frozen in the pilot’s seat, his wide emerald eyes reflecting a kaleidoscope of impossible colors. 

The cosmic storm did not behave like a weather system. It was an ocean of primordial energy, a violent, swirling nebula of blinding ultraviolet, radioactive gold, and deep, bruising violet. Crackling webs of crimson lightning arced across the ship's reinforced hull, tearing through the advanced thermal shielding as if it were made of wet tissue paper. 

“Shields at twenty percent!” the automated voice of the ship’s computer chimed, though the audio was immediately distorted, pitching down into a demonic drawl. “Fifteen percent. Hull integrity compromised. Radiation levels exceed measurable parameters.”

"Deku!" Ochaco Uraraka’s voice pierced the chaos. She was clawing at the restraints of her co-pilot seat, her face illuminated by the blinding light pouring through the reinforced cockpit glass. "Deku, the gravity dampeners! They're failing! The energy—it's shorting out the entire electrical grid!"

"I'm trying!" Izuku screamed back, his hands flying across the yoke, desperate to correct their trajectory. But the Prometheus was no longer flying; it was caught in the riptide of a cosmic tsunami. "The thrusters won't respond! The telemetry is completely fried! We're being pulled into the core of the cloud!"

Behind them, Katsuki Bakugo unbuckled his harness, ignoring the violent shaking of the ship. He braced his boots against the bulkhead, his palms sparking with fierce, desperate explosions. "Move over, nerd! Let me blow the emergency release on the external boosters! We have to reverse thrust!"

"No, Kacchan, don't touch the console! The static buildup is—"

Before Izuku could finish his sentence, the first wave of pure cosmic radiation breached the cockpit. 

It didn't break the glass. It phased right through it. 

To Izuku, time seemed to dilate, slowing to a terrifying crawl. The wave of energy looked like liquid aurora borealis. It washed over the dashboard, rendering the metal and plastic translucent, before sweeping over the three teenagers.

When the energy hit Izuku, the pain was not instantaneous. It began as a profound, deep-seated itch inside his marrow. He gasped, his hands tightening around the control yoke. Suddenly, his veins illuminated beneath his skin, glowing with a fierce, neon-purple light. 

Then, the agony hit. 

It felt as though every single cell in his body was being placed on a microscopic rack and pulled apart. He let out a blood-curdling scream, his head thrown back against the headrest. He watched in absolute, paralyzing horror as his fingers—still desperately gripping the yoke—began to elongate. 

The skin, muscle, and bone of his hands stretched like hot taffy. The yoke was violently ripped forward by the gravitational shear of the storm, moving three feet away from the pilot's seat. But Izuku’s hands didn't let go. His arms stretched with it, thinning out like rubber bands, bridging the impossible gap between his seat and the console. 

"W-What is happening to me?!" Izuku sobbed, the words bubbling out of a throat that felt like it was extending an extra inch with every breath. He tried to pull his arms back, and with a sickening, elastic snap, his hands detached from the yoke and whipped back into his chest, pooling in his lap like coiled, fleshy ropes. 

He couldn't comprehend it. His mind, however, was suddenly doing something entirely different. Alongside the physical mutation, Izuku felt an explosive pressure inside his skull. It wasn't a headache; it was an expansion. Neural pathways that had laid dormant since birth suddenly ignited. Equations regarding atmospheric friction, quantum entanglement, and the molecular density of the ship flooded his consciousness. He was processing information at the speed of a supercomputer. He knew exactly what the radiation was doing. 

It's a mutagen, his hyper-accelerated brain calculated. It’s rewriting our Quirk Factors. But I don't have a Quirk Factor. It's rewriting my base DNA. It's making my molecular bonds infinitely malleable to survive the kinetic pressure of the storm.

"Deku! Deku, help me!" 

Izuku snapped his head to the right. 

Ochaco was writhing in her seat. Her Quirk—Zero Gravity—was inherently tied to the manipulation of mass and gravitational fields. The cosmic storm, dense with gravitational anomalies, was force-feeding her Quirk an infinite supply of energy. 

Her body was losing its density. As Izuku watched, horrified and helpless, Ochaco’s hands, clutching her helmet, began to turn transparent. It was as if she were made of glass. The transparency spread rapidly up her arms, washing over her torso, turning her internal organs visible for a horrifying fraction of a second before they, too, faded into nothingness. 

"Uraraka!" Izuku cried out, his rubbery arm flopping uselessly as he tried to reach for her. 

"I can't feel my legs! I can't feel anything! I'm disappearing!" she shrieked. Where her head had been, there was only the empty headrest of the seat. She had completely vanished. 

A sudden, concussive wave of invisible force erupted from the empty seat. The kinetic shockwave slammed into the cockpit window, spider-webbing the reinforced glass. Unconsciously, in her sheer terror, Ochaco’s mutated biology had reflexively generated a gravitational force field, bending the light around her and projecting pure, invisible kinetic energy outward. 

"Round Face! Deku!" 

Bakugo’s roar was different from Ochaco’s screams. It was a guttural, animalistic howl of rage and profound agony. 

Izuku turned his head. Bakugo was suspended in mid-air near the engineering station, entirely untethered. But he wasn't falling. He was burning. 

Bakugo’s Quirk relied on nitroglycerin-like sweat to create localized explosions. The cosmic radiation had supercharged his sweat glands, acting as a catalyst for a chain reaction that his body was never meant to sustain. 

Every pore on Bakugo’s body ignited. 

He didn't just catch fire; he became a miniature sun. Blinding, white-hot plasma erupted from his skin, consuming his U.A. flight suit in a fraction of a second. The heat in the cabin spiked to lethal levels instantly. The plastic on the ceiling began to melt and drip like wax. 

"Turn it off! Turn it off!" Bakugo screamed, his voice distorting into a roaring inferno. He thrashed in the zero-gravity environment, his movements leaving trails of brilliant, solar-flare orange fire. He grabbed a metal stanchion to steady himself, but the steel liquefied instantly under his touch. 

He's not burning up, Izuku’s hyper-expanded brain deduced in a microsecond. His cellular structure has been converted into unstable plasma. He is immune to his own heat, but the ship isn't.

"Kacchan! Don't move! You're melting the hull integrity seals!" Izuku yelled, trying to command his elongated arms to reel back in. He focused all his willpower, imagining his muscles tightening, and with a sickening slurp, his arms snapped back to their normal length. 

Beneath them, deep in the bowels of the Prometheus, a different kind of nightmare was unfolding. 

Neito Monoma lay pinned beneath a collapsed steel beam in the cargo bay. The radiation had flooded the ship's main power conduits, turning the room into a blinding grid of electrical arcs. 

Monoma’s Quirk, Copy, was a reactionary power. It instinctually reached out to mimic whatever power source it was exposed to. Surrounded by a storm of infinite, cosmic Quirk energy, his body tried to copy the storm itself. 

The resulting feedback loop was devastating. 

The power terminal next to his head overloaded, exploding in a shower of sparks and superheated shrapnel. The blast caught Monoma on the right side of his face. He screamed, clutching his eye as the flesh seared. But the cosmic energy didn't let him die. It surged into his wounds, fusing the molten metal of the console into his damaged skin, intertwining raw technology with his mutated DNA. He lay there in the dark, screaming as his body became a living battery for the ambient radiation, his mind warping under the sheer influx of power. 

Suddenly, the Prometheus breached the other side of the storm cloud. 

The ship spat out of the anomaly like a bullet fired from a gun. The blinding colors vanished, replaced instantly by the cold, black void of space. But the damage was done. 

"Warning. Warning," the automated voice droned, heavily distorted. "Main thrusters offline. Navigational systems offline. Life support failing. Uncontrolled atmospheric re-entry in T-minus forty seconds."

Izuku gasped for air, the heat from Bakugo's plasma body suffocating him. He grabbed the control yoke. It was melted in places, but he could still grip it. 

"We're caught in Earth's gravity well!" Izuku shouted over the blaring alarms. He looked at the main monitor, which was flickering with static. The blue marble of Earth was rushing up to meet them at terrifying speed. "We're going to burn up on re-entry!"

"Do something, nerd!" Bakugo roared. He was a terrifying silhouette of pure fire, hovering near the ceiling. "Fly the damn ship!"

"I don't have thrusters! I don't have flaps!" Izuku’s mind raced, processing thousands of variables a second. He could see the geometric angles of their descent, the friction coefficients of the stratosphere, the terminal velocity of their mass. 

"Uraraka! Are you still there?!" Izuku yelled. 

"I'm here!" an invisible voice cried out from the co-pilot seat. "I can't see myself, Deku! I'm so scared!"

"I need you to project that force field again! Can you do that? Put it around the nose of the ship! It will act as a kinetic heat shield for re-entry!"

"I... I don't know how! I just got so scared and it happened!"

"Focus on the fear! Focus on protecting us!" Izuku commanded, his voice carrying the unwavering authority of a Pro Hero. "Kacchan! I need thrust! If we hit the atmosphere at this angle, we'll skip off the thermosphere and bounce into deep space! Get to the external airlock, blow the hatch, and blast your explosions outward! Act as our retro-rockets!"

"You want me to blow up the ship?!" Bakugo yelled, his fiery form flickering violently. 

"I want you to steer it! Go!"

Bakugo didn't hesitate. Driven by pure adrenaline and the instinct to survive, he phased his burning body through the melted door of the cockpit, rocketing down the corridor toward the rear airlock. 

The Prometheus hit the upper atmosphere. 

Instantly, the ship violently shuddered as it slammed into the wall of air at Mach 25. Outside the window, the blackness of space was replaced by a blinding wall of red and orange friction-fire. The temperature in the cockpit spiked. 

"Uraraka, now!" Izuku screamed. 

A dome of shimmering, faintly pink kinetic energy suddenly erupted from the front of the ship. The invisible force field pushed against the atmospheric friction, creating a frictionless bubble that parted the superheated air around the Prometheus. 

"I'm holding it!" the invisible Ochaco screamed, the immense strain evident in her voice. "But it's heavy! It's so heavy!"

"Hold on!" Izuku yelled. He stretched his neck—literally elongating his spine until his head touched the ceiling of the cockpit—to get a better view of the ground rushing up at them. "Bakugo! Fire!"

At the rear of the ship, Bakugo unleashed a torrent of plasma. The sheer concussive force of his super-heated explosions acted as makeshift thrusters, correcting the ship's nose-down attitude and leveling them out. 

They were a falling star, a blazing meteor tearing through the sky over Japan. 

Izuku’s expanded brain calculated their trajectory. Current heading: Southwest. Speed: Mach 4. Altitude: 30,000 feet. Terrain below... the Hosu Mountain Range. Unpopulated. High elevation. Deep forests.

"We're going to crash!" Izuku yelled, snapping his neck back down to its normal proportions. He slammed his hands onto the manual override for the landing gear, but the console was dead. "Brace for impact! Uraraka, pull the shield inside! Wrap it around the three of us!"

The pink shimmering dome at the front of the ship collapsed, instantly replaced by a tight, invisible sphere that enveloped Izuku's seat, Ochaco's empty seat, and the space between them. 

The mountains rushed up to meet them. 

The Prometheus clipped the peak of a jagged, snow-capped mountain. The impact sheared off the left wing entirely. The ship spiraled violently, tearing through a dense canopy of ancient pine trees, snapping century-old trunks like toothpicks. 

The screech of tearing metal was deafening. The fuselage buckled, twisting and crushing inward. Dirt, snow, and shattered glass filled the cabin as the ship plowed a mile-long trench through the mountainside, throwing up a massive tidal wave of earth. 

With a final, bone-shattering crunch, the Prometheus slammed into the base of a solid rock cliff, and everything went violently still. 

Back at U.A. High School, the subterranean Development Studio 1 was drowning in the sound of klaxon alarms. 

Eijiro Kirishima stood on the launchpad, his hardened skin slowly retracting back to normal, his chest heaving. The umbilical cord he had torn from the ship lay on the ground, hissing and venting liquid hydrogen. 

He stared up at the sky. The unnatural aurora had vanished, leaving only the cold, uncaring stars. 

"Midoriya? Bakugo? Anyone?!" Kirishima yelled into his earpiece, smacking the side of his head. "Come in!"

Mei Hatsume sprinted out of the engineering bay, her usual manic grin replaced by a mask of sheer terror. She practically tackled her main console, her fingers flying over the keys as she tracked the U.A. satellite feeds. 

"I lost their telemetry!" Mei shouted, her voice trembling. "They hit some kind of energy pocket in orbit. The radiation blinded the satellites! But... wait... I have a distress beacon! The ship's black box is broadcasting a crash signal!"

Kirishima ran to her side, gripping the edge of the desk so hard the metal dented. "Where?! Are they alive?!"

"I don't know! Biometrics are offline!" Mei tapped a screen, bringing up a topographical map. A blinking red dot flashed angrily in the middle of a dense green expanse. "They came back down! They crashed in the Hosu Mountain range, sector 4-G. It's miles away from civilization."

"Call the Pro Heroes! Get Recovery Girl!" Kirishima yelled, already turning toward the exit. 

"I am, I am! But it's going to take them at least thirty minutes to scramble a U.A. rescue chopper and navigate the mountain thermals!" 

Kirishima stopped. Thirty minutes. If they were bleeding out in the wreckage of a spaceship, thirty minutes was a lifetime. They wouldn't make it. Bakugo, Midoriya, Uraraka. His friends. His classmates. 

He looked toward the far end of the hangar. Sitting on a testing rig was a sleek, aerodynamic hover-bike—a prototype high-speed response vehicle Mei had been building for the Hero Course. It looked like a jet engine with a saddle bolted to it. 

"Hatsume," Kirishima said, his voice dropping into a low, deadly serious register. "Is the 'Hover-Sled' fueled?"

Mei looked up, following his gaze. Her eyes widened. "Kirishima, no. It's highly experimental! It doesn't have inertial dampeners! If you push it past Mach 1, the wind shear will rip your skin off!"

"My Quirk is Hardening," Kirishima said, cracking his knuckles. His skin erupted into jagged, impenetrable rock. He marched over to the sled and swung a heavy, stone leg over the saddle. "I can take the wind. Give me the coordinates."

Mei hesitated for only a second. She knew the look in his eye. It was the same look Midoriya had when he decided to launch the ship. It was the look of a hero. 

She slammed a fist onto her console, remotely unlocking the sled's docking clamps and beaming the GPS coordinates to the bike's heads-up display. "Fly low to avoid commercial radar. Godspeed, Red Riot."

Kirishima revved the throttle. The thrusters screamed to life, blowing loose tools and paperwork across the hangar. He shot out of the open roof silo like a crimson bullet, tearing through the night sky toward Hosu. 

Smoke. The acrid smell of burning aviation fuel, melted wiring, and pulverized pine needles. 

Izuku opened his eyes. The world was sideways. 

He was hanging by his five-point harness, the cockpit completely inverted. Red emergency lights strobed weakly through the dense smoke. The front window was gone, replaced by a jagged mound of dirt and shattered rock. 

"U-Uraraka?" Izuku croaked, coughing violently. He tasted blood. 

"I'm here," a whimpering voice came from the empty seat beside him. Slowly, the invisibility began to fade. It was like watching a Polaroid picture develop. First, the outline of her suit appeared, then the pale, terrified flesh of her face. She was trembling uncontrollably, clutching her arms to her chest. The invisible force field she had generated had saved them from the crushing impact, but the toll on her body was immense. 

Izuku reached up to unbuckle his harness. As he pressed the release button, he realized something horrifying. 

His arm didn't look like an arm. 

It was draped over the console like a length of heavy, wet rope. His hand rested three feet away, draped over the yoke. As he panicked, his heartbeat spiking, his entire body lost its structural integrity. He slipped right through the tight five-point harness, his shoulders narrowing to impossible proportions, his torso elongating like warm putty. He spilled out of the chair and onto the ceiling-turned-floor in a puddle of human limbs. 

"Deku!" Ochaco screamed, unbuckling herself and falling to the floor. She scrambled over to him, her hands hovering over his twisted, pooled form. "Oh my god, your bones... they're gone!"

Izuku gasped, trying to pull himself together. It took a massive amount of mental concentration. He had to remember what his skeleton felt like. He had to command his cells to solidify. Slowly, agonizingly, his rubbery limbs retracted, swelling back to their normal thickness. He pushed himself up onto his knees, panting heavily. 

"I'm... I'm okay," Izuku lied, looking at his hands. If he relaxed his focus even slightly, his fingers began to droop and stretch toward the floor. "The radiation... it altered our cellular structure. It gave us... Quirks. Or at least, an extreme mutation of what we had."

A deafening crash from the rear of the ship interrupted them. The thick titanium door connecting the cockpit to the corridor was blasted off its hinges, flying past them and embedding itself in the dirt outside. 

Through the smoke, a figure emerged. 

It was Bakugo. But he wasn't human anymore. 

He was a walking silhouette of pure, localized plasma. Blinding orange and yellow fire roared off his body, casting long, dancing shadows across the wreckage. The heat radiating from him was intense, immediately singeing the edges of Izuku's hair. 

"Kacchan..." Izuku breathed, shielding his eyes from the glare. 

Bakugo stepped forward, leaving scorched, glowing footprints on the metal deck. He looked at his hands, watching the flames lick up his forearms. He didn't look angry. For the first time in his life, Katsuki Bakugo looked completely, utterly terrified. 

"I can't..." Bakugo’s voice was a crackling inferno, layered with static. "I can't turn it off, Deku. The sweat... it won't stop igniting. I'm burning up."

"You're not burning, Kacchan. You're synthesizing the energy," Izuku said softly, his mind instantly analyzing Bakugo's state. "Your body has become a contained fusion reaction. You have to breathe. Slow your heart rate. Lower your core temperature."

"I can't! I don't know how to be a damn matchstick!" Bakugo yelled, the flames flaring wildly with his rising panic. He backed away, clutching his head. "Stay away from me! I'll melt you!"

Suddenly, a low, mechanical groaning echoed from the center of the ship. 

Izuku’s expanded brain instantly recognized the acoustic signature. "The hyper-drive," he whispered, his blood running cold. 

When the Prometheus had been engulfed by the cosmic storm, the ship’s liquid hydrogen reactor had acted like a sponge, absorbing terrifying amounts of raw cosmic energy. Now, the containment casing was cracked. 

"We have to get out of here," Izuku yelled, staggering to his feet and grabbing Ochaco's hand. "The reactor is going critical! It's going to blow, and it's taking the rest of the cosmic radiation with it!"

"The cargo bay!" Ochaco cried. "Monoma is down there!"

"I'll get him!" Bakugo roared. He turned and propelled himself down the corridor, using jets of flame from his hands to fly over the debris. 

Izuku and Ochaco scrambled out through the shattered windshield, tumbling onto the cold, snowy dirt of the mountain. The night air was freezing, a sharp contrast to the suffocating heat inside the ship. 

Bakugo blasted out of a hole in the side of the hull a moment later. He wasn't carrying anyone. 

"He's not there!" Bakugo yelled, landing heavily on the ground, the snow instantly turning to steam beneath his fiery feet. "The external hatch was blown open from the inside! The bastard bailed!"

"He survived?" Izuku asked, his mind spinning. But there was no time to think about Monoma. 

A blinding, violet light began to pulse from the center of the crashed ship. A high-pitched whining sound pierced the air, growing louder by the second. The ground beneath their feet began to tremble. 

"It's detonating!" Izuku shouted. "Run! Get to the tree line!"

They turned and bolted, but it was hopeless. Izuku’s calculations were brutally precise. The blast radius of the overloaded reactor, compounded by the cosmic energy, would vaporize everything within a half-mile. They wouldn't make it ten yards. 

"Uraraka, the shield! Make the shield!" Izuku yelled, instinctively stretching his arms out wide to try and wrap his rubbery body around her and Bakugo to protect them. 

"I can't! I don't know how I did it!" she sobbed, closing her eyes and raising her hands, but nothing happened. 

The violet light inside the ship reached a blinding crescendo. The reactor casing shattered. 

And then, a crimson blur dropped from the sky. 

Eijiro Kirishima slammed into the earth between the teenagers and the ship, his landing cratering the rock beneath him. The U.A. Hover-Sled crashed into the trees a hundred yards away, abandoned in mid-air. 

"Kirishima?!" Izuku screamed. 

Kirishima didn't look back. He didn't have time. 

He saw the blinding violet light of the cosmic reactor erupting outward. He knew what he had to do. He crossed his arms over his face, planted his feet firmly into the dirt, and activated his Hardening Quirk, pushing it far beyond his absolute limit. 

"Red Riot... Unbreakable!" Kirishima roared. 

His skin turned pitch black, erupting into massive, jagged crags of impenetrable rock. He became a living shield, a wall of pure, unyielding stone standing between his friends and annihilation. 

The reactor detonated. 

The explosion was not a ball of fire, but a wave of pure, silent, cosmic radiation. It hit Kirishima with the force of a nuclear bomb. 

The raw, unadulterated Quirk energy washed over him, violently interacting with his activated Hardening Quirk. Kirishima screamed, the sound echoing over the mountains, but he did not move. He dug his stone heels into the earth, his body taking the absolute brunt of the cosmic fallout. 

The radiation sought out his DNA, finding his Hardening Quirk pushed to its absolute maximum. The cosmic energy didn't just enhance it; it locked it in place. It fused the temporary physiological change into a permanent, structural reality. 

Behind him, Izuku, Ochaco, and Bakugo were thrown to the ground by the secondary shockwave, but they were spared from the radiation. 

The violet light flared brilliantly, turning the night sky day, and then abruptly collapsed in on itself, leaving nothing but a smoking, molten crater where the center of the Prometheus had been. 

Silence fell over the mountain, save for the crackle of burning pine trees. 

Izuku slowly pushed himself up from the dirt. He felt stable. His body was holding its shape, though his skin felt unusually pliable, like tightly drawn silicone. He looked to his left. Ochaco was sitting up, coughing, perfectly visible and unharmed. To his right, Bakugo lay in the dirt. The flames had died down to a faint, glowing ember across his skin, his body having exhausted its initial, violent fusion reaction. 

"We're... we're alive," Ochaco whispered, tears streaming down her soot-stained face. 

Izuku scrambled to his feet. He looked toward the crater. 

Standing at the edge of the molten slag, back turned to them, was Kirishima. 

But it wasn't Kirishima. Not really. 

He was massive. He had easily grown two feet taller and doubled in width. His U.A. uniform had been entirely shredded by the blast and his sudden expansion, leaving him in only the tattered remnants of his reinforced pants. 

His skin was no longer flesh. It wasn't even the jagged, black armor of his Unbreakable form. It was a deep, rusty, craggy orange rock. He looked like a golem roughly hewn from the canyon walls of a desert. Massive plates of stone interlocked over his shoulders, chest, and arms. 

"Kirishima...?" Izuku whispered, taking a trembling step forward. 

The massive figure slowly turned around. 

The face was horrific and tragic. The soft, cheerful features of Eijiro Kirishima were gone, replaced by a heavy, protruding brow of solid rock. He had no nose, only two slit-like nostrils. His jaw was a massive, square block of stone. The only remnant of his humanity was his eyes—bright, terrified, piercing red eyes staring out from beneath the rocky brow. 

Kirishima looked down at his massive, four-fingered stone hands. He tried to release his Quirk. He gritted his teeth, letting out a deep, gravelly groan of effort, trying to command the rock to melt back into flesh. 

Nothing happened. 

He flexed his arms. The stone ground against itself with a sickening, grating sound, like boulders tumbling down a mountainside. He reached up, his massive, jagged fingers trembling, and touched his own rocky face. 

"Midoriya..." 

Kirishima’s voice was unrecognizable. It wasn't the energetic, upbeat tone of the boy who had eagerly agreed to steal a spaceship. It was a deep, resonant rumble, a voice that sounded like it belonged to an earthquake. 

"Midoriya... what's happening to me?" Kirishima choked out, the massive stone plates on his chest heaving with panic. "I can't... I can't turn it off. I can't feel my skin."

"Kirishima, hold on," Izuku rushed forward, reaching out. He placed his hand on Kirishima’s arm. It was cold. It felt exactly like touching a boulder. Izuku’s hyper-active brain analyzed the tactile feedback. There was no pulse beneath the rock. The rock was the flesh. The cosmic radiation from the reactor blast had permanently bonded with his activated Quirk Factor. 

He was trapped. 

"Kirishima, I... I don't know," Izuku said, his voice breaking. The crushing weight of guilt slammed into him, heavier than the G-forces of the launch. This was his fault. He had asked Kirishima for help. He had brought them up there. "We'll fix it. I promise you, Eijiro. I'll figure it out. I'll build a cure."

Kirishima looked at Izuku, then at the smoking ruin of the ship, and finally down at his monstrous, inhuman body. He stumbled backward, the sheer weight of his new form causing his heavy, three-toed feet to crack the stone beneath the snow. 

He didn't say anything else. He just let out a low, anguished roar, turning his back on them and trudging heavy, thunderous steps into the burning forest, disappearing into the smoke and shadows. 

"Eijiro! Wait!" Bakugo yelled, forcing himself up onto his elbows, his body smoking. 

But Kirishima was gone. 

Izuku dropped to his knees in the ash-covered snow. He looked at his own hands, pulling gently on his index finger. It stretched effortlessly, like a wet noodle, before snapping back into place. He looked at Ochaco, who was staring in horror at the spot where she had been standing, terrified she might vanish again. He looked at Bakugo, whose skin was literally simmering with contained plasma. 

They had gone into the stars seeking the salvation of mankind. They had returned to Earth as something entirely different. 

High above them, the U.A. rescue helicopters finally crested the mountain peaks, their spotlights cutting through the smoke, illuminating the three transformed teenagers and the wreckage of their ambition. 

Miles away, stumbling blindly through the dark, dense woods of the Hosu mountains, Neito Monoma collapsed against a tree. He was clutching the right side of his face. His fingers traced the jagged, cooling metal of the U.A. power console that was now permanently fused into his skull, forming a crude, horrifying half-mask over his scarred flesh. 

His pale blue eye stared out into the darkness, burning with an unhinged, venomous hatred. 

"Midoriya..." Monoma hissed, his voice a jagged rasp. He looked up at the sky, the cosmic energy still buzzing violently beneath his skin. "You did this to me. You will pay. I swear it on my life... you will pay."

The rescue felt less like a salvation and more like an abduction. 

When the fleet of black, unmarked U.A. Security helicopters descended upon the Hosu mountains, they did not come with warm blankets and hot cocoa. They came with floodlights, containment foam, and Pro Heroes looking for a threat. 

Shota Aizawa was the first on the ground, his capture weapon writhing around his shoulders like a nest of agitated vipers. Behind him, Sekijiro Kan—Vlad King—barked orders into a radio, his eyes scanning the burning wreckage of the Prometheus. 

Izuku Midoriya remembered very little of the actual extraction. The adrenaline had faded, leaving behind a profound, terrifying exhaustion. He remembered Ochaco being loaded into a glass-walled medical pod, her form flickering in and out of the visible spectrum like a dying lightbulb, causing the paramedics to back away in terror. He remembered Bakugo being sprayed with absolute-zero fire retardant, the plasma of his skin hissing violently and plunging the surrounding air into a thick cloud of steam as they forced him into a heavy containment unit. 

And he remembered Kirishima. 

They had found the red-haired boy a mile away from the crash site, sitting on a jagged boulder overlooking a valley. He hadn't fought the Pro Heroes. He hadn't said a word. When Aizawa approached him, ready to erase his Quirk, his glowing red eyes just stared blankly ahead. Aizawa’s Quirk had flashed, his hair standing on end, but Kirishima’s rocky exterior hadn't flinched, hadn't melted away. The realization that it wasn't an active Quirk, but a permanent physiological mutation, had caused Aizawa to lower his goggles in grim silence. They had to use a cargo-lifter net to hoist Kirishima into a heavy transport chopper. 

As for Neito Monoma, the rescue teams found him hours later, unconscious in a ravine. The reports Izuku vaguely overheard through the static of the comms mentioned catastrophic facial trauma and something about foreign metallic objects fused to his skull. They didn't bring Monoma back with them; a sleek, silver helicopter bearing the insignia of the Hero Public Safety Commission had intercepted the medical evac, claiming jurisdiction over their student liaison. 

Then, there was only darkness. 

Izuku woke up. 

There was no grogginess, no slow blinking away the cobwebs of sleep. He went from absolute unconsciousness to hyper-lucid awareness in a microsecond. 

He didn't just open his eyes; he absorbed the room. 

Dimensions: 15 by 15 feet. Ceiling height: 10 feet. Wall composition: 8-inch reinforced titanium alloy beneath 2 inches of padded, sound-dampening polymer. Air pressure: slightly elevated, likely to prevent airborne pathogens from escaping. Temperature: exactly 21 degrees Celsius.

Izuku sat up on the sterile white cot. His mind felt... different. It was as if someone had taken the crowded, messy library of his brain, expanded it to the size of a continent, and instantly cataloged every single piece of information perfectly. He could remember the exact serial number on the oxygen tank of the paramedic who had treated him. He could recall the exact mathematical equation for the Prometheus's thruster trajectory without a pencil. He could feel the rotation of the Earth beneath him. 

It was terrifying. And exhilarating. 

He looked down at his hands. They looked normal—scarred, calloused, familiar. But when he flexed his fingers, he felt an unnatural lack of resistance. His joints didn't lock. His ligaments felt like they were made of warm silicone. 

Curious, Izuku pinched the skin on the back of his left hand and pulled. 

The skin didn't just stretch; the muscle, vein, and bone beneath it elongated perfectly. He pulled his hand a full three feet away from his body. His arm thinned out into a taut, rubbery cord. There was no pain. Just a bizarre, muted sensation of tension. He let go, and with a soft snap, his hand retracted perfectly back into place. 

"Fascinating, isn't it?"

Izuku’s head snapped toward the wall. The entire left side of his cell was a one-way reinforced glass mirror, but a speaker mounted in the ceiling crackled to life. 

"The molecular bonds of your cellular structure have been fundamentally rewritten," the voice continued. It was a familiar, high-pitched, polite tone. "Your cells no longer break under physical stress; they slide past one another, constantly adapting, constantly reforming. You are, for all intents and purposes, entirely malleable."

The glass hummed and suddenly turned transparent. Standing on the other side, in a dimly lit observation corridor, was Principal Nezu, the chimera headmaster of U.A. High. Beside him stood Recovery Girl, leaning heavily on her syringe-cane, her face etched with profound exhaustion and sorrow. 

"Principal Nezu," Izuku said, swinging his legs over the side of the cot. As his feet touched the floor, he accidentally stretched his legs, making himself stand seven feet tall for a second before his brain quickly commanded his body to retract back to his normal height of 5'5". He stumbled, catching his balance. "Where... where are we? Are the others okay? Where is Kirishima?"

"You are currently eighty stories beneath the U.A. campus, Midoriya," Nezu said softly, his paws clasped behind his back. "In a deep-earth quarantine facility originally designed to hold catastrophic Quirk Singularity events. As for your friends... they are alive. But their conditions are... complicated."

"I have to see them," Izuku said, walking toward the glass. "I can help them. The cosmic radiation acted as a volatile catalyst, hyper-accelerating our base genetic traits to survive the kinetic trauma of the storm. If I can get access to a centrifuge and some of the localized atmospheric data from the flight recorder, I can synthesize a—"

Izuku stopped, blinking. The words had poured out of his mouth faster than he could consciously think them. The chemistry, the biology, the physics—it was all just there, laid out in his mind like a brightly lit map.

Nezu’s dark, beady eyes widened slightly. "Midoriya. Your academic files indicated you were a brilliant Support student, but you just perfectly described a theoretical mutagenic synthesis that would take my top researchers decades to hypothesize. What exactly did that storm do to your mind?"

Izuku tapped his temple, his fingers feeling slightly squishy. "My brain is a muscle. The radiation made my cells infinitely malleable. That means my neural pathways, my brain cells... they expanded. They're constantly forming new connections. I don't just remember things better; my processing speed is... it's beyond anything I can describe. I can see the math in everything."

"A hyper-elastic body and a hyper-expanded mind," Recovery Girl murmured, shaking her head. "It's a miracle you didn't just pop like a balloon up there, sonny."

"The others," Izuku insisted, pressing his hands against the glass. He could feel the coldness of the silica, could instantly calculate the density required to shatter it. "Please, Principal Nezu. Let me see them."

Nezu sighed, a heavy, weary sound. "You must understand, Midoriya. The Hero Public Safety Commission is furious. You stole a multi-billion yen spacecraft, caused a localized nuclear event, and returned as highly volatile, unregistered anomalies. They wanted you transferred to Tartarus for 'containment and study.' I had to invoke a century-old scholastic sanctuary clause to keep you here under U.A.'s jurisdiction."

Izuku’s blood ran cold. Tartarus. The maximum-security prison for the worst villains in the world. 

"They think we're villains?" Izuku whispered. 

"They think you are uncontrollable," Nezu corrected. "Monsters created by your own hubris. Midoriya... I need you to prove them wrong. I need you to show me that you can control these... powers. If you cannot, I will not be able to protect you, or your friends, from the Commission."

Nezu pressed a button on the console in front of him. The door to Izuku’s cell unlocked with a heavy pneumatic hiss. "Come with me. Prepare yourself, my boy. What you are about to see is not easy."

Izuku followed Nezu and Recovery Girl down the stark, white corridor. The silence was deafening, broken only by the hum of massive air-filtration units. 

They stopped in front of Cell 2. 

Izuku looked through the glass. The room was not a standard cell; it was a vacuum-sealed chamber. Floating in the dead center of the room was Ochaco Uraraka. She was huddled into a tight ball, her knees pulled to her chest, her face buried in her arms. 

She was completely invisible. 

The only way Izuku knew she was there was the faint, shimmering distortion in the air, like heat rising off a highway in the summer. A tray of food sat on a table nearby, untouched. 

Izuku pressed his hand against the glass. "Uraraka?" he called out through the two-way intercom. 

The shimmering distortion jumped. Slowly, Ochaco lifted her head. As she did, her face flickered back into the visible spectrum, pale and streaked with tears. Her brown eyes locked onto Izuku, wide with terror. Then, as quickly as she appeared, her form vanished again, leaving only the outline of her clothes, before those too faded into nothingness. 

"Deku?" her voice crackled over the speaker, sounding small and hollow. "Is that you? I can't... I can't stay. Every time I get scared, I disappear. I can't stop it."

"Her Zero Gravity Quirk has mutated," Nezu explained quietly. "Gravity bends light. Her body is generating a localized gravitational field so intense, but so completely contained, that photons are curving right around her. She isn't just invisible; she is bending the visual spectrum."

"And the force fields?" Izuku asked, remembering the pink kinetic dome that had saved their lives. 

"A defensive reflex," Recovery Girl sighed. "When her heart rate spikes, the gravitational field violently expands, pushing kinetic energy outward. Two days ago, a nurse dropped a clipboard in the hall. The girl startled, and a concussive wave of force blew the reinforced steel door clean off its hinges. She's terrified to move."

Izuku stared at the empty air where his friend floated. His hyper-brain analyzed the physics of her condition. Light refraction. Autonomic nervous system responses. Adrenaline. 

"Uraraka, listen to me," Izuku said, his voice steady, projecting calm authority. "You aren't disappearing. You're still there. I know you're there. You're just bending the light."

"I don't know how to un-bend it!" she sobbed from the void. 

"Yes, you do. It's tied to your emotions. When you're scared, your body builds a wall. A visual wall and a physical wall. You have to lower the wall." Izuku closed his eyes. "Think about something heavy. Something anchoring. Don't think about floating. Think about gravity. Think about standing on the ground. Breathe in the air. Feel the weight of your own bones."

Inside the cell, the shimmering distortion slowly began to still. 

"Weight," Ochaco whispered. "Weight."

Fingertips appeared. Pale, trembling fingertips. Then, the curve of her cheek. The messy strands of her brown hair. Slowly, painfully, the light stopped bending. Ochaco solidified, dropping gently out of her floating position to land on the padded floor, entirely visible. 

She looked down at her hands, then up at Izuku through the glass. A fragile, watery smile broke across her face. "I... I can see myself."

"You did it," Izuku smiled warmly, though his heart ached for the terror she had endured. "Just focus on the anchor, Uraraka. You control the light; it doesn't control you."

Nezu looked at Izuku, a spark of hope in his dark eyes. "Remarkable. You truly understand the physics of these mutations."

"It's just math, sir," Izuku said softly. "But math doesn't fix everything."

They moved to the next cell. Cell 3. 

This one was vastly different. It was an industrial thermal chamber, lined with thick, blackened firebrick and heavy thermal-glass observation windows. The temperature gauge outside the door read 800 degrees Celsius. 

Inside, the room was a literal inferno. 

Katsuki Bakugo was pacing like a caged, rabid animal. But he wasn't flesh and blood. He was a terrifying silhouette of pure, crackling, white-hot plasma. His body emitted a blinding aura of orange and yellow flames that licked the ceiling. Every time his fiery feet touched the floor, the firebrick hissed. 

"He's been like this for two weeks," Recovery Girl said, her voice grim. "We've had to pump absolute-zero coolant into the ventilation just to keep the room from melting into slag. He can't sleep. He can't eat. His body is a perpetual fusion engine."

"Let me out!" Bakugo’s distorted, roaring voice vibrated through the thick glass, ignoring the intercom entirely. He slammed a fist of pure fire against the thermal pane, leaving a glowing, white-hot scorch mark. "I'll kill you! I'll burn this whole damn school to the ground! Let me OUT!"

Izuku stepped up to the glass. He could feel the radiant heat seeping through the thick thermal layers. 

"Kacchan."

Bakugo whipped around. His fiery, featureless face glared at Izuku. "Deku! You bastard! Look what you did to me! Look at me! I'm a freak! I can't even touch a glass of water without it vaporizing! How am I supposed to be the Number One Hero if I burn everything I touch?!"

"You're not a freak, Kacchan. You're a star," Izuku said, his voice carrying through the intercom. 

Bakugo froze, the flames on his shoulders flickering wildly in confusion. "What kind of nerd crap is that?!"

"I mean it literally," Izuku said, tapping the glass. "Your Quirk used to ignite your sweat. Now, your entire cellular structure has the potential to convert into volatile plasma. You are containing the energy of a small sun. But the key word is potential. You are keeping the engine running because you're angry. You're constantly fueling the reaction."

"I can't turn it off! It hurts!" Bakugo roared, clutching his fiery head. 

"It hurts because you're fighting it!" Izuku shouted back, his own passion rising. "Your body is trying to vent the energy, but your pride is trying to lock it down! You have to starve the fire, Kacchan. Stop screaming. Stop pacing. Oxygen and heat. That's the fuel. You have to lower your core temperature mentally."

"Shut up! I don't need a Quirkless nobody telling me how to use my power!"

"I'm not Quirkless anymore, Katsuki!" Izuku snapped, shocking both Bakugo and Nezu. To prove his point, Izuku slammed his hand against the glass, letting his arm flatten and spread out like a pancake against the surface before snapping back to normal. "None of us are what we were! We are in this together! Now sit down, shut up, and breathe!"

Bakugo stared at Izuku, the roaring inferno of his body crackling with uncertainty. Slowly, begrudgingly, the explosive boy sank to the floor, crossing his legs into a lotus position. 

"Focus on your core," Izuku instructed, his voice softening. "Pull the heat inward. Don't push it out. Draw the plasma back into your cells. Imagine a switch. Just a simple switch."

Bakugo gritted his teeth. The flames around his body flared violently for a moment, shifting from white to a deep, angry red. He took a long, shuddering breath. The fire receded from his fingertips. Then his arms. The crackling plasma slowly gave way to pale, sweat-drenched skin. The fire pulled back down his neck, retracting into his chest until, finally, with a sharp hiss of escaping steam, the flames died out completely. 

Bakugo sat on the floor, panting heavily, completely naked, his skin flushed and red but entirely human. He looked at his hands, his crimson eyes wide with disbelief. 

"I did it..." Bakugo whispered, his voice hoarse. "I turned it off."

"Flame on, flame off," Izuku smiled tiredly. "You just have to learn the trigger."

Bakugo looked up at Izuku through the glass. For a fleeting second, there was no anger, no rivalry. Just profound relief. Then, exhaustion overtook him, and Bakugo collapsed onto the floor, falling into his first deep sleep in weeks. 

"Incredible," Nezu whispered, taking notes on a tablet. "You've stabilized two of them in less than ten minutes. Midoriya, you are the linchpin of this team."

Izuku didn't smile. His hyper-brain was already calculating the layout of the facility. "There's one more cell. Cell 4. At the end of the hall."

Nezu and Recovery Girl exchanged a dark, heavy look. The hope that had briefly brightened the corridor vanished, replaced by a suffocating gloom. 

"Midoriya..." Recovery Girl started, her voice trembling slightly. "You need to prepare yourself. The others... their mutations are active. They can be turned on and off, as you just proved. But Kirishima..."

"I know," Izuku said, his voice flat. He began walking toward the heavy, blast-proof steel door at the end of the hall. "Open it."

Nezu swiped a keycard. The massive vault door groaned open, revealing a room that looked less like a medical cell and more like a subterranean bunker designed to house a kaiju. The walls were bare, scarred steel. There was no bed, only a pile of reinforced industrial blankets in the corner. 

Sitting in the center of the room, facing away from the door, was Kirishima. 

He was a mountain of jagged, orange rock. He wore a massive, custom-tailored trench coat and a wide-brimmed fedora, attempting to hide his monstrous form, though the craggy spikes of his shoulders tore through the fabric. He was holding a small, steel cafeteria tray. 

Izuku stepped into the room. The door clicked shut behind him. 

"Eijiro?" Izuku said softly. 

Kirishima flinched. The sound of stone grinding against stone echoed through the room as his massive shoulders tensed. "Midoriya. You're awake."

His voice was a deep, mournful rumble. It vibrated in Izuku's chest. 

"I'm awake," Izuku walked closer, his heart breaking with every step. He could see the deep fissures in Kirishima’s rocky hide, the rough, unyielding texture of his mutated body. "How are you feeling?"

"Heavy," Kirishima answered simply. He didn't turn around. "Everything is... heavy. I can't feel the air conditioning. I can't feel the fabric of this coat. When I eat, it just tastes like ash. The doctors tried to take a blood sample yesterday. The needle snapped. They tried a diamond-tipped drill. It sparked and broke."

Kirishima looked down at the steel tray in his hands. On it was a cup of water. 

"I just wanted a drink," Kirishima whispered. 

He tried to pick up the plastic cup. But his massive, three-fingered stone hand lacked any tactile sensitivity. He couldn't judge the pressure. As his fingers closed around the cup, he accidentally squeezed. 

CRUNCH.

The plastic shattered. Water splashed across the steel tray. Startled, Kirishima’s hand jerked, and his immense, monstrous strength accidentally crushed the entire steel tray, folding it like a piece of tin foil. 

Kirishima stared at the mangled metal in his hands. A low, agonizing groan escaped his throat. He threw the tray across the room. It slammed into the steel wall with the force of a cannonball, leaving a deep dent. 

Kirishima stood up, his massive, hulking frame towering over Izuku. He lumbered toward the only reflective surface in the room—a small, polished steel mirror bolted above a heavy-duty sink. 

He stared at his reflection. 

The craggy, brow-heavy face. The lack of a nose. The slit-like mouth. The glowing red, terrified eyes trapped inside a prison of stone. 

"Look at me, Midoriya," Kirishima rumbled, his voice cracking with a sob that sounded like grinding tectonic plates. "Look at me!"

"Eijiro, please..." Izuku stepped forward, reaching out. 

"I wanted to be a hero!" Kirishima roared, slamming his massive stone fists onto the metal sink, crumpling it instantly. "I wanted to be like Crimson Riot! I wanted to stand in the sun and smile and tell people everything was going to be okay! I wanted to be manly! I wanted to protect people!"

He grabbed the edges of the mirror, his rocky fingers digging into the steel wall. 

"But look at me! I'm not a hero! I'm a monster! If a little kid saw me in an alley, they wouldn't run to me... they'd run away! I can't even hug my own mother, Midoriya! If I hug her, I'll crush her!"

With a final, anguished roar, Kirishima pulled back his massive right fist and punched the steel mirror. The metal shattered, the wall behind it caving in from the sheer, devastating impact. 

Kirishima collapsed to his knees, the impact shaking the entire floor. He buried his monstrous, rocky face in his massive hands, his broad shoulders heaving as he sobbed. But he had no tear ducts. He couldn't even cry properly. The dry, racking sobs were the most heart-wrenching sound Izuku had ever heard. 

Izuku dropped to his knees beside his friend. He didn't care about the danger. He wrapped his arms around Kirishima’s massive, jagged stone torso. He hugged the monster. 

"I'm sorry," Izuku wept, the crushing weight of his guilt finally breaking through his hyper-logical mind. "Eijiro, I am so, so sorry. I did this to you. I brought you onto that ship. This is my fault."

Kirishima didn't push him away. He just sat there, a broken statue in a steel cage. "It's permanent, Midoriya. The doctors said my Quirk Factor is completely calcified. I'm stuck like this forever."

"No," Izuku said, his voice suddenly shifting. The tears stopped. The hyper-intelligence of his mutated brain flared to life, burning with a singular, unyielding purpose. 

Izuku pulled back, looking up into Kirishima’s glowing red eyes. 

"I don't care what the doctors say. They don't have my mind. Eijiro, listen to me. I swear on my life. I swear on every single brain cell in my head. I will fix this. I will build a cure. I don't care if it takes me ten years, or a hundred years, or if I have to stretch myself across the entire universe to find the answer. I will make you human again. That is my promise."

Kirishima looked at Izuku, seeing the absolute, terrifying conviction in the green-haired boy's eyes. Slowly, the rock-monster reached out and gently, carefully, rested his massive stone hand on Izuku's shoulder. 

"Okay, bro," Kirishima whispered. "I believe you."

Miles away, in an undisclosed, off-the-books medical facility run by the Hero Public Safety Commission, another awakening was taking place. 

It was not one of camaraderie or hope. It was a birth of pure, unadulterated malice. 

The room was dark, illuminated only by the sterile blue glow of heart monitors and life-support machines. On the central operating table lay Neito Monoma. 

His body was heavily bandaged, but the bandages over the right side of his face were stained with a dark, oily substance that smelled of ozone and scorched copper. 

Monoma opened his left eye. It was pale, cold, and lucid. 

He didn't panic. He didn't scream. He simply analyzed his situation. He remembered the crash. He remembered the blinding light of the reactor, the surge of cosmic energy, and the agonizing heat of the ship's power console exploding in his face. 

Slowly, Monoma raised his right hand and reached toward his face. 

"I wouldn't touch that, if I were you."

A man in a crisp suit stepped out of the shadows. He was a high-ranking Commission agent, flanked by two armed guards. "You've suffered catastrophic trauma, Monoma. The cosmic radiation from Midoriya's little joyride acted as a localized bonding agent. Your Quirk, Copy, went into overdrive. It didn't just copy the radiation; it attempted to assimilate the immediate environment to keep you alive."

The agent stepped closer, holding up a small hand mirror. 

"The U.A. surgeons tried to remove the shrapnel, but it's no longer shrapnel. The metal from the ship's console, the wiring, the processor chips... they are now a fundamental part of your skeletal structure."

Monoma looked into the mirror. 

The left side of his face was untouched—aristocratic, pale, and handsome. But the right side was a nightmare. From his jawline to his hairline, his flesh was gone, replaced by a jagged, horrifying mask of fused, dark metal. Wires snaked in and out of his skin like veins. His right eye had been replaced by a glowing, red optical sensor scavenged from the ship's targeting computer. He looked like a cyborg demon. 

"We can offer you a place in our underground operative division," the agent continued smoothly. "You're disfigured, yes. But your Quirk has mutated. You no longer need to touch someone to copy their power. The tech fused to your brain allows you to siphon ambient Quirk energy from the atmosphere. You are a living siphon. You could be very useful to the Commission."

Monoma stared at his reflection. He didn't see a victim. He saw a survivor. He saw a man who had been cast aside, scarred by the sheer incompetence and hubris of a Quirkless idiot playing god. 

Midoriya had stolen his future. Midoriya had turned him into a monster. 

"Useful," Monoma whispered, his voice distorted, a metallic rasp echoing beneath his human vocal cords. "You think... I am a tool for bureaucrats?"

"You belong to the Commission now, Monoma. U.A. has written you off."

Monoma slowly sat up on the operating table. The life-support monitors beeped rapidly. 

"My name," Monoma said, turning his glowing red optic toward the agent, "is no longer Monoma. That boy died in the stars, screaming while Midoriya flew away."

Suddenly, the lights in the room flickered. The machinery began to hum loudly. 

"What are you doing?" the agent demanded, stepping back. "Guards, restrain him!"

Monoma raised his hand. He didn't just copy Quirks anymore; he copied energy. The tech fused into his skull allowed him to interface with the very electrical grid of the building. 

With a sickening surge of power, Monoma drained the electricity from the entire hospital wing. The lights shattered. The monitors exploded. The raw electrical energy surged into Monoma's body, channeling through his metallic faceplate. 

He unleashed it. 

A blinding arc of lightning blasted from his hand, striking the two guards and sending them crashing through the drywall, unconscious and smoking. The agent fell to his knees, paralyzed by the residual shockwave. 

Monoma stood up, ripping the IVs from his arms. He walked over to the trembling agent and reached down, his human hand grabbing the man by the throat, hoisting him into the air. 

"Tell your masters at the Commission that I am not their operative," Monoma hissed, his metallic eye glowing fiercely in the dark. "Tell them that a new order is coming. Midoriya and his freaks think they are gods because they touched the cosmos. But I survived the fire. I will build an empire from the ashes they left behind."

Monoma dropped the agent and walked toward the reinforced window. With a casual flick of his wrist, he unleashed a kinetic blast—copied from the ambient Quirk energy of a guard outside—shattering the glass. 

He stepped out into the rainy night, the cold water hissing against his metallic face. He had lost his humanity, but he had gained something far more dangerous. He had gained a purpose. He would build an armor to hide his scars. He would build an army to crush U.A. 

Neito Monoma was dead. Doctor Doom was born. 

A month passed in the subterranean quarantine of U.A. 

For Izuku, Ochaco, and Bakugo, it was a month of grueling, relentless training. They had to relearn how to exist. Izuku had to constantly focus on maintaining his structural integrity, learning to use his elasticity not just to stretch, but to compress, bounce, and absorb impact. Ochaco practiced for hours with Izuku's coaching, learning to project her kinetic force fields into solid constructs—stepping stones in the air, defensive walls, and localized gravity wells. Bakugo, under strict meditation regimens, learned to control his plasma output, shifting from human to human-torch at will, and learning to ride the thermal updrafts to fly. 

Kirishima did not train. He sat in his cell, brooding, reading the books Izuku brought him, waiting for a cure. 

But a massive problem quickly became apparent: their clothes. 

When Bakugo "flamed on," he incinerated his U.A. uniform instantly. When Ochaco turned invisible, her clothes remained visible, rendering her stealth useless unless she was naked—which was unacceptable. When Izuku stretched, his clothes tore to shreds. And Kirishima simply couldn't fit into anything but massive, custom-stitched tarps. 

They couldn't be heroes if they couldn't be seen in public. 

Izuku’s hyper-brain went to work. He requested U.A. drop a fully equipped chemical fabrication lab into his cell. For three days, he didn't sleep. He communicated with Mei Hatsume via video link, bouncing equations off her as he worked with a centrifuge, a 3D fabric printer, and samples of their own irradiated blood. 

"The problem is the molecular rigidity of standard textiles," Izuku muttered into a microphone, his arms stretched out, operating three different chemical stations simultaneously. "Even Hatsume's smart-fabrics can't adapt to total atomic phase-shifting."

"So, we need a fabric that isn't dead," Hatsume's voice chirped over the speaker. "A fabric that mimics your new cellular structure!"

"Exactly," Izuku grinned, pulling a vial of glowing blue liquid from a centrifuge. "I've synthesized a polymer using the irradiated residue from the Prometheus's atmospheric shielding, combined with synthetic proteins modeled after our mutated DNA. I call them... Unstable Molecules."

He poured the liquid into the 3D printer. "They aren't just clothes. They are symbiotic constructs. They share our atomic frequency."

Twelve hours later, Izuku stood in the central observation hub of the quarantine facility. 

The heavy steel doors to the cells opened. 

Bakugo walked out first. He was wearing a sleek, form-fitting bodysuit made of a deep navy-blue material, accented with black boots and gloves. There was no flashy armor, no grenade gauntlets. Just the suit. 

"It's tight," Bakugo grumbled, pulling at the collar. "Feels like I'm wearing a second skin."

"Try it," Izuku said, standing across from him, wearing an identical suit. 

Bakugo grinned fiercely. "Flame on."

In a flash of blinding light, Bakugo's body erupted into pure plasma. But the suit didn't burn. It seamlessly adapted, the Unstable Molecules shifting into a thermal-conductive state, turning into a shell of contained, fiery energy right alongside him. He shifted back to human, and the suit was perfectly intact, not even a scorch mark. 

"Not bad, nerd," Bakugo smirked. 

Ochaco stepped out next, wearing the same navy-blue suit, though hers had a slightly different cut for mobility. She looked at Izuku, took a deep breath, and activated her Quirk. 

She vanished entirely. But this time, the suit vanished with her. The Unstable Molecules bent the light in perfect synchronization with her gravitational field. She reappeared a second later, a massive smile on her face. "It works! Deku, I'm not naked!"

"That was the goal," Izuku laughed, blushing slightly. 

Finally, the heavy vault door to Cell 4 opened. 

Kirishima lumbered out. The ground shook with every step. He wasn't wearing a full suit—Izuku had calculated that covering his stone body would restrict his movement and offer no additional protection. Instead, Kirishima wore heavy, reinforced navy-blue pants made of the Unstable Molecules, stretching perfectly to accommodate his massive, craggy legs, held up by a heavy-duty industrial belt. He still wore his oversized trench coat, collar popped to hide his face. 

"Pants fit, bro," Kirishima rumbled quietly, keeping his eyes on the floor. "Thanks."

Izuku walked up to his friends. He looked at the three of them. A boy made of fire. A girl who could command the unseen. A monster made of unbreakable stone. And Izuku himself, a boy who could stretch across the world. 

They weren't classmates anymore. They were something entirely new. 

Principal Nezu walked into the hub, accompanied by Shota Aizawa. The Pro Hero looked at the four teenagers, his usual tired expression replaced by a look of grim evaluation. 

"The suits are a success, Midoriya," Nezu said, nodding in approval. "And not a moment too soon."

"What's wrong?" Ochaco asked, stepping closer to Izuku. 

Aizawa stepped forward, crossing his arms. "The Hero Public Safety Commission has issued an ultimatum. They have drafted a warrant for your permanent transfer to a black-site facility. They claim you are a danger to society and cannot be trusted in the public eye."

"Let them come," Bakugo sneered, his hands sparking. "I'll melt their damn warrants."

"No," Aizawa said sharply. "If you fight them, you prove them right. You become villains. But Principal Nezu and I negotiated a counter-offer. A loophole in the Hero Registration Act."

Izuku’s hyper-brain caught up instantly. "A field test. A public debut. If we can prove we can save lives without causing collateral damage, the public will embrace us. And the Commission can't arrest beloved public figures without causing a riot."

"Exactly," Nezu smiled thinly. "We have received reports of a massive, subterranean disturbance in the downtown subway hub of Shibuya. Pro Heroes are overwhelmed. It appears to be a villain with a gigantification or earth-manipulation Quirk. Buildings are collapsing. People are trapped."

Nezu looked at the four of them. 

"This is your trial by fire. You go out there, you save those people, and you show the world that you are not monsters. You show them you are heroes."

Izuku looked at Bakugo, who was grinning like a feral predator. He looked at Ochaco, who gave a determined, brave nod. He looked at Kirishima, who slowly raised his massive stone head, his red eyes burning with a desperate need for redemption. 

Izuku nodded, his voice steady and resolute. 

"Open the hangar doors, Principal Nezu. We're ready."