Chapter 4: The Suit and the Storm
The night in the archives had been long, silent, and punctuated only by the clack of Izuku’s keyboard and the occasional, irritable shift of Bakugou’s chair. By morning, the air between them was thick with a mutual, unspoken frustration. They’d been given a puzzle where all the pieces felt like accusations.
Aizawa found them there at ten, looking as though he’d slept even less than they had. He didn’t offer greetings. “Up. Follow me.”
“More filing?” Bakugou drawled, not moving.
“Better. Or worse. Depends on your perspective.” Aizawa was already walking out. “Bring your sulk. It might be useful.”
They trailed him through the campus, the spring sunlight feeling incongruously cheerful. Students milled about, laughing, completely oblivious to the tectonic plates shifting beneath their feet. Izuku kept his head down, avoiding the curious glances thrown at the grim trio of a homeroom teacher, a top-ten hero, and an exhausted-looking Eraserhead.
They stopped at a reinforced door labeled ‘Support Lab 3 – Authorized Personnel Only’. The biometric scanner read Aizawa’s palm and retina, and the door hissed open, revealing a space that was less a lab and more a mechanical womb.
The hum of advanced climate control systems and the sweet, sharp scent of ozone and hot metal washed over them. The room was a symphony of organized chaos. Shelves lined with component parts, half-built drones suspended from ceiling rigs, and in the very center, under a bank of LED work lights, stood a single figure surrounded by holographic schematics that glowed like azure spiderwebs.
Hana Ishikawa turned as they entered. She was a first-year, small, with her dark hair pulled into a messy bun secured by a wrench. Goggles were pushed up on her forehead, leaving smudges of grease. Her eyes, a bright, focused brown, went wide behind her glasses, skipping over Aizawa and Bakugou to land directly on Izuku.
“Sensei!” she blurted, her voice a mix of excitement and sheer terror. She snapped upright, knocking a torque driver from the workbench. It clattered on the polished floor.
Then her gaze flicked to Bakugou, and her professional demeanor crashed back down, tinged with awe. “And… Dynamight. Sir.” She gave a stiff, shallow bow.
“Ishikawa,” Aizawa said, his voice cutting through the formalities. “The project. Is it ready for demonstration?”
“Yes, sir! Operational parameters are within predicted tolerances. The neural-link calibration is… stable.” She was talking to Aizawa, but her eyes kept darting back to Izuku, searching his face for something—approval, maybe, or fear.
“What project?” Izuku asked quietly. A cold knot was forming in his stomach. The pristine center of the room was empty, save for a reinforced mannequin stand.
Hana took a deep breath, her fingers dancing across a holographic panel. The air behind her shimmered. A section of the wall, seamless and white, depolarized, becoming transparent. Behind it, in a climate-controlled storage bay, was the suit.
It wasn’t like anything Izuku had ever seen. It wasn’t the vibrant, fabric-based costume of his youth. This was something else entirely—sleek, matte black interlocking plates of a graphite-colored composite, with subtle lines of pulsating cyan light tracing the joints and musculature. It was organic and mechanical all at once, built not for flamboyance but for brutal efficiency. The helmet was sleek, with a single, uninterrupted visor that currently glowed a soft, dormant blue. It stood upright, suspended in its bay, more like a silent samurai’s armor than a hero’s uniform.
“I call it the Resonance Frame,” Hana said, her voice gaining strength as she fell into explanation mode. “It doesn’t grant a quirk. It doesn’t need to. It reads the user’s neuromuscular signals—their intent to move—and amplifies it through a series of piezoelectric actuators and hydraulic enhancers. It’s strength and speed, generated by the wearer’s own body, multiplied. The processing suite predicts movement patterns, offers tactical overlays, and the armor composite can disperse and redistribute kinetic impact… Sir.”
The last word was for Izuku. Her bravado faltered. “It’s… it’s for you. I’ve been designing it since you started teaching the Quirk Theory seminars. I listened. You talked about the body’s limits being as much about perception as physics. About the potential that remains when the flashy part is gone. This… this is that potential.”
The silence in the lab was absolute, save for the hum of the servers. Izuku could only stare. It was beautiful. It was terrifying. It was a monument to everything he’d lost, and a bridge to a place he’d been told he could never go again.
Bakugou broke the silence. He took two steps forward, his red eyes scanning the suit with the cold, analytical detachment of a professional assessing a new piece of hardware. “Weight distribution?”
“Eighteen kilograms, evenly spread across the exoskeletal frame. The wearer carries almost none of it directly; the frame bears the load,” Hana answered instantly, grateful for a technical question.
“Power source?”
“High-density capacitor banks in the back and thigh plates. Thirty minutes of peak operation. Recharges in ninety. It has a low-power mode for sustained mobility.”
“Weak points?”
Hana’s confidence flickered. “The… the neural-link is the most vulnerable system. It’s hardened against EMP, but a targeted disruption at the cervical interface could cause a feedback loop or a system lock. And… it’s still a machine. It can be overloaded.”
Bakugou nodded once, a sharp jerk of his chin. Then he turned to Izuku. His expression was unreadable, a mask of granite. “So that’s the plan. They want to mine your brain for old quirk data? Put you in a walking tank and see if they can crack it open.” He snorted, a harsh sound. “Bait. But with sharper teeth.”
“It’s not bait,” Hana insisted, her hands curling into fists at her sides. “It’s a tool! It’s a way for Sensei to defend himself, to be proactive—”
“It’s a shiny cage,” Bakugou shot back, his voice rising. “He’s not a hero anymore. He’s a teacher. You built him a weapon and called it a solution. Now every asshole with a data fetish is gonna see that thing and think ‘prize’.”
“Kacchan,” Izuku said, the old nickname slipping out, quiet but firm.
Bakugou whirled on him. “What? You gonna put it on? Go for a spin? Remember what it feels like to jump buildings until your legs shake? It’s a damn prosthetic for your ego, Deku.”
The word hung in the air, a relic from a childhood war. It didn’t sound like an insult this time. It sounded like a diagnosis.
Izuku finally looked away from the suit and met Bakugou’s gaze. He saw the anger, yes, but beneath it, buried deep, was something else. A raw, fierce fear that had nothing to do with tactics or protocol. Bakugou had seen him break before. He’d seen him shatter his own body for a victory. This suit promised power without a Quirk, but it couldn’t promise safety. It just changed the way he might break.
“Why did you build it, Hana?” Izuku asked, his voice terribly calm.
The girl flushed, looking down at her grease-stained boots. “Because… because you look at the training fields sometimes. You watch the students, and you smile, but your eyes are… somewhere else. You’re here, but you’re not. I thought… I thought if you could stand out there again, on your own terms, you might come all the way back.”
Her honesty was a physical blow. It laid bare his own quiet yearning, the ghost-limb ache he thought he’d hidden so well.
Aizawa, who had been observing from the doorway like a specter, finally spoke. “The decision is yours, Izuku. Ishikawa’s work is exceptional. The suit is a formidable asset. But Bakugou is not wrong. Wearing it changes your profile from a scholar to a combatant. It will escalate their interest.” He paused. “But sometimes, controlled escalation is the best defense. Hiding wasn’t working.”
Izuku walked past Bakugou, past Aizawa, to the transparent wall. He pressed his hand against the cool surface, inches from the helmet’s dark visor. His own reflection, pale and tired, stared back at him, superimposed over the armored shell.
He thought of the warehouse, of the probe aiming for his neck. Of sitting in the archive, useless, while others defined the threat around him. He thought of the hologram’s polite, murderous thanks.
This wasn’t about being a hero again. That was a dream he’d put away. This was about being a target that could bite back. About rewriting the calculation the man in the blank mask was making.
“Can I try it?” he asked, his voice barely more than a whisper.
Hana’s breath hitched. “Yes. Of course. The fitting protocol will take about an hour. It needs to sync with your neural pathways.”
Bakugou made a sharp, disgusted sound in the back of his throat and turned away, stomping towards the door. “Fine. Get in your mech. I’ll be outside. Someone’s gotta keep the perimeter while you play dress-up.”
He slammed the lab door behind him with a force that made the tools rattle on their racks.
The fitting was a peculiar, intimate invasion. The inner layer of the suit was a form-fitting smart-fabric that adhered to his skin, dotted with hundreds of micro-sensors. Hana, all business now, guided him through the process, her fingers steady as she attached leads to his temples, his spine. The plates locked into place with satisfying magnetic clicks, each one transferring its weight not to him, but to the humming exoskeleton beneath. He felt caged. Then the system booted.
A soft chime sounded in his ears. The world through the visor bloomed with subtle, translucent data: his heart rate, environmental readings, a threat-vector scan that currently registered only Hana and Aizawa in green. He took a step. The suit moved with him, a perfect mirror, amplifying the motion just enough to feel effortless. He lifted his hand, flexed his fingers. The cyan light along the knuckles pulsed faintly.
“The system learns from you,” Hana murmured, watching a holoscreen displaying his biometrics. “The more you move, the more seamlessly it will anticipate you. Try a jump. Just a small one.”
Izuku bent his knees and pushed off the floor.
He didn’t just jump. He launched, the actuators in the legs firing with a suppressed whirr-thump. He shot upwards, the ceiling rushing towards him far too fast. He yelped, flailing, and the suit’s stabilizers engaged, arresting his ascent and letting him land in a crouch that absorbed the impact with a hydraulic sigh. The floor didn’t crack. His ankles didn’t scream.
He stayed there, crouched, looking at his hands—the suit’s hands—pressed against the polished concrete. A sensation, long-forgotten, flooded his nervous system. Not the overwhelming, crackling power of One For All. This was cleaner. Sharper. A precise, responsive extension of his own will.
It wasn’t his old power.
But it was power.
He stood. Outside the lab window, he could see Bakugou leaning against the opposite wall of the corridor, arms crossed, staring out a window at the campus below. His posture was a rigid line of disapproval.
Izuku walked to the lab door. It slid open. Bakugou didn’t turn.
“It’s not a cage, Kacchan,” Izuku said, his voice modulated slightly by the helmet, giving it a deeper, resonant quality.
Bakugou finally looked at him. His eyes traveled slowly from the sleek helmet down to the glowing seams of the armor and back up. His expression was complex—a grudging respect for the engineering warring with a profound, personal disdain for the entire situation.
“Looks like one from here,” Bakugou said, his voice low. “You really think putting on a fancy shell changes what’s inside? You’re still you. You still run into trouble faster than anyone can pull you out.”
“I know,” Izuku said. The helmet retracted with a soft hiss, plates folding back from his face, revealing his determined, earnest expression. “But now, the trouble will see me coming.”
For the first time since the warehouse, something flickered in Bakugou’s eyes that wasn’t just anger or frustration. It was a reckoning. The dynamic had shifted, again. The powerless scholar was gone. In his place stood something new, something untested. A variable.
Bakugou pushed off the wall, standing to his full height. He looked at the suit, then at Izuku’s face within it. He smirked, but it was hollow. “Fine. Let’s see what it can do, then. The training ground. Now. If you’re gonna wear it, you’d better damn well know how to use it before someone tries to take it from you.”
He turned and started walking, not waiting for an answer. Izuku watched him go, then glanced back into the lab where Hana watched, hopeful and terrified, and Aizawa gave a single, slow nod.
The suit’s systems hummed around him, a new kind of heartbeat. He took a breath, felt the actuators subtly align with his ribs. Then he followed.
Then he followed.
Izuku took two steps into the corridor, the suit's hydraulic systems whispering with each movement, his focus locked on Bakugou’s retreating back. The impulse to match his pace, to test this new body against a known quantity, was a physical pull in his chest.
“No.”
Aizawa’s voice cut the air from the lab doorway, flat and definitive. Izuku froze mid-stride, one armored foot hovering above the polished floor. He turned his head, the servos in the neck frame emitting a faint whir.
“Not yet,” Aizawa said, stepping fully into the hall. His eyes were narrowed, taking in the imposing silhouette Izuku now cast. “We need to make sure no one sees it yet.”
Izuku paused. He thought of the hologram, of the profiles on the warehouse wall, of the invisible net tightening around the school. The thrill of potential curdled, replaced by the old, familiar weight of caution. He lowered his foot slowly, the actuator sighing.
“Right,” he said, the helmet’s modulator making the word sound hollow. “I should… I should train in private. Minimize the risk.” He couldn’t keep the disappointment from staining his voice, the letdown after the adrenaline of the suit’s first jump.
Aizawa rolled his eyes, a slow, weary motion. “Ever since the war, we still have the underground paths. Maintenance and emergency access.” He nodded down the corridor, away from the main campus view. “There’s a network. It leads to Training Ground Sigma. The one we use for sensitive or destructive quirks. It’s shielded, soundproofed, and has no external sightlines.”
He rattled off a series of turns—left at the defunct boiler room, down the steel staircase marked ‘Authorized Personnel’, a five-digit code for the first bulkhead door. The instructions were crisp, practiced. “You go only at night. After midnight. Sensor grids go into low-power mode for system rebooting between two and four AM. That’s your window. You see anyone—janitor, security bot, another teacher getting lost—you turn around and abort. The suit doesn’t exist.”
Bakugou had stopped walking. He’d listened, back still turned, shoulders tense. Now he spun, his scowl deepening. “Midnight? So we’re pulling graveyard shifts now to play in a basement? This is ridiculous.”
“It’s operational security,” Aizawa said, his gaze never leaving Izuku. “You wanted him to be a harder target? This is step one. Control the information. His presence in that suit is now classified. Your involvement is classified.” He finally looked at Bakugou. “If you have a problem with the schedule, you’re relieved. I’ll assign someone else to shadow him.”
The threat hung there. Bakugou’s jaw worked. Being dismissed was unthinkable. Being replaced was worse. He glared at the floor, then back at Izuku in the suit. “Whatever. Fine. Midnight.”
Izuku felt the session ending, the momentum draining away into protocol and secrecy. The suit, which moments ago felt like liberation, now felt like another layer of confinement. He gave a single, stiff nod to Aizawa. “Understood. I’ll… wait.”
Back in the lab, Hana helped him out of the armor. The process was slower than suiting up. Each plate, once so full of promise, felt like a dead weight as she stored it back in its climate-controlled bay. The cool air of the lab hit his sweat-dampened undersuit, making him shiver. He was just Izuku again, in a tracksuit, standing before the magnificent, sealed shell of what he couldn’t yet use.
“It’ll be okay, Sensei,” Hana whispered, her earlier bravado gone. She looked young and worried. “The wait will make the first real test better.”
He offered her a smile that felt thin. “It’s a brilliant piece of work, Hana. Truly. Thank you.” The gratitude was real, but it was tangled in a thicket of frustration.
The rest of the day passed in a muffled blur. Confined to his small, on-campus apartment, Izuku tried to work on the data review Aizawa had demanded. The words on the screen—grant applications, vendor lists—swam before his eyes. All he could think about was the silent map of tunnels under his feet and the faint, cyan glow of the suit’s power indicators.
Bakugou was presumably somewhere on campus, a restless ghost. The forced inactivity was a special hell for both of them.
When true darkness finally fell, deep and complete, the waiting became a physical ache. Izuku watched the clock. He changed into dark, non-descriptive training clothes. At eleven forty-five, a single, harsh knock rattled his door.
He opened it. Bakugou stood there, dressed in black tactical gear, no hero insignia. He looked like a shadow given form. He didn’t speak, just jerked his head toward the hall.
They moved through the sleeping campus silent as regrets. The route Aizawa had described was a journey into the school’s bones. The boiler room was a cavern of dormant machinery. The steel staircase echoed dully. The bulkhead door, painted the same grim green as everything else, opened with a gasp of stale, cooled air.
The tunnel beyond was lit by sparse, yellowing LEDs recessed into the arched concrete ceiling. It smelled of damp, concrete dust, and aged electrical insulation. Their footsteps, once they left the staircase, made no sound on the soft, grit-covered floor.
“This is creepy as hell,” Bakugou muttered, his voice barely carrying. He was scanning the shadows ahead, every sense alert. This was a different kind of patrol.
“It’s practical,” Izuku replied, his own voice low. The tunnel stretched onward, branching occasionally. He counted the turns Aizawa had given him. Left. Right. Another left. The air grew slightly warmer, humming with a subliminal vibration from unseen generators.
They reached a final, massive door labeled ‘Sigma – Active Containment Sector’. Izuku input the code. A series of heavy locks disengaged with solid, resonant thunks.
The door swung inward.
Training Ground Sigma was not like the other grounds. It wasn’t a mock city or a forest.
It was a vast, empty concrete cylinder, at least fifty meters tall and a hundred wide. The walls were seamless, embedded with dark impact-absorbing panels and sophisticated sensor arrays. The ceiling was a dome of the same material. The only light came from a dim, omnidirectional source high above, leaving the floor bathed in a twilight gloom. The air was still, cool, and carried a metallic tang.
It was a blank slate. A真空 chamber for controlled violence.
Bakugou whistled, the sound bouncing strangely in the sterile space. “Cheery place.” He walked to the center, his boots sending soft echoes across the vast floor. “Alright. Get it on. We’ve got maybe two hours before some system wakes up and wonders why the power draw in here spiked.”
From a large, nondescript duffel bag he’d carried, Izuku extracted the compact storage units for the Resonance Frame. Hana had shown him the quick-deploy sequence. Laying the core units on the floor, he triggered the initialization.
The effect was mesmerizing in the gloom. The specialized polymer unfolded and assembled itself with a series of smooth, precise motions and quiet hydraulic hisses, plates locking and lights cycling through a diagnostic amber before settling into that standby cyan. It stood there, waiting.
Izuku didn’t hesitate this time. He stepped into the open suit back. The panels closed around him, snug and certain. The visor snapped down, and his world was again overlaid with clean, tactical data. His breathing sounded loud in the sealed helmet.
He turned to face Bakugou, who was stretching his shoulders, a familiar, predatory grin finally touching his lips. It wasn’t friendly. It was a promise of assessment.
“Don’t hold back,” Bakugou said, small explosions popping like camera flashes in his palms, casting sharp, fleeting light across the concrete. “And don’t think that shell makes you special. It just makes you harder to break.”