A strange and unsettling silence filled the USJ facility as the swirling mass of darkness settled at the center of the plaza. From its depths, figures emerged—slowly at first, then in numbers too great to count. Their presence polluted the once-serene training facility with a suffocating air of malice.
Shigaraki Tomura, the man who led them, stood near the center of the gathering horde. His pale, sickly-looking skin stretched tightly over his thin frame, and the severed hands adorning his body twitched slightly as he moved. The most prominent one, resting atop his head, masked part of his face, leaving only his glowing red eyes visible. He looked around, fingers idly scratching at his neck as though lost in thought.
"Where is he?" His voice was dry, almost absentminded, but irritation burned beneath the surface. His head jerked slightly as he scanned the area. "This was supposed to be his time slot, wasn't it? The great Symbol of Peace, All Might. Where is he?"
No one answered.
"Where is he?" he muttered to himself before raising his voice. "Hey, Kurogiri. You said today was All Might's turn, right?"
Next to him, the mist-like figure, Kurogiri, stood poised, his deep, resonant voice calm yet foreboding.
"It seems our information was incorrect." Kurogiri stated. "All Might is not present."
Shigaraki's fingers twitched violently against his palm, his irritation visible. Then, his gaze landed on Radahn, who stood beside Aizawa.
The students stood frozen, their gazes locked onto the growing mass of villains before them. Their minds refused to process what was happening.
"What the hell?" Kirishima muttered, his hands tightening into fists. "This… this isn't part of the training, is it?"
Seeing Aizawa serious , Kirishima's face paled.
"This isn't a drill" Kirishima said, his voice unusually tense.
"There's way too many of them." Kaminari muttered. "How the hell are we supposed to fight that?"
Kaminari's breath hitched. "T-those guys, they're real villains."
Ochako felt her stomach sink. The way they moved, the cruel glints in their eyes—this wasn't a simulation. This was real.
Todoroki's eyes narrowed as he studied the enemies, especially the strange mist-like figure who seemed to be giving orders. "They didn't just stumble in here. If they planned for All Might to be here." His expression darkened. "They're here to kill him."
"K-kill All Might?!"- Midoriya
That sentence sent a wave of shock through the students. All Might—the Symbol of Peace—wasn't just a deterrent to them. He was their target.
And then, the presence of something far more menacing cast a shadow over the battlefield.
A hulking figure stepped forward from the villains' ranks. Its body was grotesquely muscular, far beyond human proportions. Black, glistening skin stretched taut over its absurd frame, and a grotesquely exposed brain pulsed atop its head. Its fingers twitched, claws glinting under the artificial lights of the USJ dome.
The sight of it sent a chill down every student's spine.
"What the hell is that?!" Sero exclaimed, his voice cracking.
"It must be some kind of Quirk" Jiro muttered, trying to steady her breathing.
"A Quirk mutation?" Midoriya murmured, eyes wide.
Bakugo narrowed his eyes, staring at the creature. It was standing still, like a caged animal awaiting release. Something about it felt… wrong.
Todoroki's sharp gaze swept over the gathered villains, his mind already analyzing the situation. This wasn't a random attack. It was coordinated.
Shigaraki clicked his tongue in irritation. "Tch if he's not here, this is pointless." His fingers twitched near his neck again. Maybe-"
"Even if he is absent, we can still cause destruction. We can still send a message."
Some of the villains chuckled among themselves. One of them, a tall, lanky man with a jagged scar on his chin, sneered at the students. "Heh! well, would you look at this? A bunch of fresh meat. Hero students, huh? Must be our lucky day."
Another villain, with a snake-like grin, leaned forward slightly. His eyes scanned the girls in the class, and his lips curled into something vile. "Damn , they've got some cute ones, too. Maybe we have a little fun before we kill 'em."
Ochako's face twisted in disgust. Asui's throat tensed, her hands balling into fists.
"Disgusting bastard" Jiro muttered under her breath, resisting the urge to lash out.
A low chuckle rumbled through the group of villains, their confidence swelling as they saw the students freeze. To them, these kids were nothing but prey.
Shigaraki, however, barely paid them any mind. His focus remained on the heroes—particularly the man standing next to Aizawa. His fingers twitched. Something about that presence was different.
Radahn's golden eyes met his from across the distance. He remained still, unshaken. Observing.
Shigaraki ignored their fearful whispers, his crimson gaze sweeping across the students before narrowing slightly as they landed on Radahn. His fingers ceased their scratching.
"A new face?" he muttered. "Hm, kill this handsome NPC along with the kids."
"Then , when All Might comes and sees his beloved students scattered lifeless , he will be in despair."
"It'll be such an ecstasy to watch"
At his command, the villains surged forward.
Laughter erupted from their ranks, some crazed and unhinged, others filled with cruel anticipation.
Another villain, with tentacles like arms said "Look at these little heroes, all lined up for us."
Another, a lanky figure with a sickening grin, ran his tongue across his teeth as his gaze lingered on the girls in the class. "Haha, what a lucky day. We get to fight and have some fun?"
But before any of them could react, Aizawa stepped in front of them.
His scarf unravelled, and his normally tired eyes sharpened into something dangerous. His entire posture shifted—he was no longer a sleepy teacher. He was Eraserhead, the underground hero.
"Thirteen" he said, his voice impatient. "Protect the students."
The rescue hero, despite her usual calm demeanour, nodded seriously. "Understood. I won't let them get past me."
"This is bad" Kirishima muttered, his usual excitement dulled by the sheer tension in the air.
"Who the hell are these guys?" Kaminari whispered.
Bakugo, however, clenched his fists, his red eyes burning with something different. "Tch, doesn't matter. We just beat their asses."
Asui's throat bobbed slightly. "Villains- real villains"
Radahn, standing beside Aizawa, watched the advancing villains with an unreadable expression. His golden eyes flickered between them, observing their movements like a predator analyzing prey. There was no fear. No hesitation.
Aizawa's voice carried a weight of finality. "Hoshigami-san."
Radahn turned slightly, acknowledging him.
Aizawa exhaled. "You're coming with me."
Radahn's lips curled slightly, a hint of amusement playing at the edges. "Very well."
With that, the two moved.
Aizawa wasted no time. He sprinted toward the left flank of the battlefield, where the villains were less concentrated. His capture weapon lashed out, wrapping around a villain's neck before slamming him into the ground. Another tried to activate his Quirk, but Aizawa's gaze erased it in an instant, leaving the thug defenceless. Within moments, he had already cut down several of them, moving with surgical precision.
Radahn, however, did something entirely different.
Instead of taking the safer approach, he launched himself directly into the largest cluster of villains—where they were most densely packed.
The criminals recoiled slightly, startled by his audacity. Then, their shock twisted into amusement.
"What an arrogant bastard!" one of them spat.
"He thinks he can take us all by himself?" another sneered.
"Big mistake."
"Let's carve him up nice and slow."
Radahn's golden eyes began to glow. The air around him grew heavier, thick with a force unseen yet undeniably suffocating. An ethereal aura, deep golden in colour, began to envelop his body. The very space around him warped and trembled under its presence.
The villains' jeers faltered.
Something was wrong.
Their lungs suddenly felt tight, as if an invisible weight was pressing down on them. Their limbs grew sluggish. Their instincts screamed at them—something unnatural was unfolding before them.
The villains surrounded Radahn, their expressions twisted with arrogance and cruelty. Some cracked their knuckles, others twirled weapons in their hands, and a few sneered as they sized him up.
"Hah! This guy thinks he's hot shit, taking all of us on alone?" one villain scoffed, rolling his shoulders.
"He's dead meat" another spat, licking his lips.
"Might as well carve him up now."
A particularly unhinged villain grinned, his teeth sharp and jagged.
"Oi, boys, once we're done here, how about we have some fun with those girls in their hero costumes?"
His gaze flicked toward the students behind Radahn, his laughter sending chills down their spines.
Kirishima clenched his fists. "Bastards!"
Bakugo's palms crackled with explosions, his teeth gritted in fury. "You disgusting trash, say that again, and I'll fucking kill you!"
The villains laughed. "Oh? Little brats wanna act tough?"
Radahn didn't react to their words—his golden eyes remained steady, cold, and unreadable. He simply stood there, unmoving, as if the threats and taunts meant nothing to him.
The villains took this as weakness.
"Heh, what's the matter, tough guy? Scared?" one jeered, stepping forward.
Another villain cracked his knuckles. "Let's make him scream."
Without warning, the mob of villains lunged at Radahn.
And then—everything changed.
A blinding burst of golden energy exploded outward from Radahn's body, consuming the battlefield in an instant. The air became unbearably heavy, a crushing force slamming into the villains with unrelenting ferocity.
The ground trembled beneath them, splitting and cracking as an invisible weight bore down upon everything in its path.
Screams of agony erupted as bodies were mercilessly crushed under the sheer pressure.
Some villains' intestines burst from their torsos as their ribs collapsed inward, their organs rupturing under the immense force. Others were twisted and contorted in ways that defied nature—legs bent backward, arms snapped like dry branches, and necks cracked at unnatural angles. Blood splattered across the shattered ground, painting it in a grotesque crimson.
Some were lucky enough to survive—but barely. The ones who remained conscious twitched and gasped, their bodies broken beyond recognition. Most lay unmoving, caught between the realm of life and death.
Aizawa's eyes widened as he took in the sheer devastation. His jaw tightened, his voice sharp and filled with warning.
"Hoshigami! Refrain from killing!"
Radahn didn't answer.
The remaining villains, the few still standing far away, were paralyzed with horror. Their faces twisted in pure terror as their minds struggled to comprehend the massacre they had just witnessed.
Then—panic set in.
"S-Shit! Run!" one of them shrieked, scrambling backward.
"He's not human! He's a fucking monster!" another cried, tripping over the broken bodies of his comrades.
They tried to flee.
But then—Radahn released another wave of aura.
This one was different. It carried something deeper, something primal.
Fear.
A crushing, suffocating aura of pure terror blanketed the battlefield.
Every villain froze.
Their limbs refused to move. Their instincts screamed at them, warning them that any attempt to escape was meaningless.
Even Shigaraki's legs trembled , his fingers twitching at his sides.
Radahn took a step forward.
The moment he passed the frozen villains, one by one, they started collapsing. Their bodies crumpled to the ground as their eyes rolled back, unconscious. It was as if their very souls had been snuffed out, their minds unable to withstand the suffocating presence of the warlord before them.
The students watched in silent horror.
Some of them gagged. Others covered their mouths, their stomachs twisting violently at the sight of the carnage.
Then, the sound of vomiting filled the air.
Hagakure fell to her knees, dry heaving. Mineta collapsed beside her, emptying his stomach onto the ground. Even Kaminari, usually so carefree, turned pale as he staggered backward, trying to hold back the bile rising in his throat.
"T-This is insane." Jiro whispered, her hands trembling.
"This isn't a fight, It's a massacre," Kirishima muttered, his usually unshakable resolve faltering.
Momo turned away, closing her eyes. Even she, with all her training, found it difficult to stomach what she was witnessing.
Only Bakugo seemed unaffected—but his eyes held something different. A look of deep, burning determination.
"Fucking… hell…" he muttered under his breath.
Thirteen, who had been standing protectively in front of the students, turned toward Aizawa, her voice tight. "We need to get them out of here. Now."
Aizawa nodded. "Kurogiri—"
Before he could finish, a deep, resonant voice echoed through the air.
"I'm afraid I can't allow that."
A swirling black mist materialized in front of them.
Kurogiri.
Before anyone could react, he struck ,form merging with the black mist as his portals stretched across the battlefield.
Thirteen reacted instantly. "Get back!" She raised her hands, preparing to activate her Quirk, but Kurogiri was faster.
She started sucking Kurogiri but Kurogiri opened the portal at her back allowing her attack to hit herself.
A shimmer of dark energy wrapped around her before she could react—an invisible force pulling at her back. Suddenly, a loud tear echoed through the air as Kurogiri's mist cut through her hero suit.
The fabric of her space suit was shredded in an instant. With no structural integrity left, the force of her own Quirk backfired on her. A sudden whoosh of air sucked outward before a shockwave blasted her off her feet.
She collapsed onto the ground, unmoving.
"Sensei!" Iida called out in alarm.
"Run, Iida! Call the teachers!"
Multiple voices rang out in unison, desperation thick in their tones. The students, still processing the chaos unfolding before them, realized that they were outmatched.
Fear gripped their hearts, but amidst that fear, a singular thought emerged—they needed help.
Iida hesitated for a fraction of a second, his pride as a class representative screaming at him to stay and protect his peers. His fists clenched, his body tense. He wasn't one to run from a fight, not when his friends were in danger.
"But—!"
"GO!" Uraraka shouted, her voice cutting through the noise. Even Bakugo, who was already preparing to blast his way through the villains, sneered in frustration.
"Damn it, just move, Four-Eyes! You're the fastest one here!"
Gritting his teeth, Iida finally made his decision. His hesitation evaporated, replaced with sheer determination. He planted his foot firmly on the ground, took a deep breath, and then—
VROOM!
The engines in his calves ignited, roaring to life as blue flames burst from his exhaust pipes. With a powerful kick, he shot forward, tearing across the battlefield at breakneck speed.
Kurogiri's mist lunged toward him like grasping hands, but he was too fast. The dark tendrils barely grazed his uniform as he blurred past them, accelerating toward the exit with everything he had.
"I won't fail!" he shouted to himself, the wind rushing past his ears. "I will bring reinforcements—no matter what!"
Kurogiri's mist surged forward, enveloping the students.
One by one, they vanished.
Midoriya felt the world spin as he was yanked away, his vision consumed by the darkness of the portal. The last thing he saw before everything disappeared was Radahn, still standing unmoving amidst the battlefield.
Scattered across the battlefield, the students landed in various locations within the USJ facility, surrounded by the remaining villains who had managed to survive Radahn's earlier assault.
Kirishima groaned as he hit the ground, rolling into a defensive stance. "Damn it! Where—where are we?!"
On the other side ,
Midoriya pushed himself up, his body trembling. "His Quirk , it's teleportation. We've been split up!"
"Fantastic," Bakugo growled, standing and cracking his knuckles. "Bastards wanna play dirty? Fine."
His palms sparked with explosions.
Elsewhere, Asui with Midoriya blinked as she assessed her surroundings, her tongue flicking out.
"This isn't good, ribbit. We need to regroup."
Momo, gripping her arm where she had landed hard, swallowed. "We were completely unprepared for this."
The villains that had been scattered with them started grinning. They still outnumbered the students, and despite Radahn's earlier display, they were emboldened by the fact that they weren't facing him directly anymore.
One of them cracked his neck, a twisted smirk on his face. "Looks like we get to play after all."
Meanwhile,
Back in the center of the battlefield, Shigaraki stood frozen.
His fingers twitched. His breath was shallow.
Fear.
It coiled around him like a noose.
His mind screamed at him to move, to act, but his body refused. His throat felt tight, his heartbeat erratic. Radahn hadn't even looked at him—hadn't even acknowledged him—and yet the sheer weight of his presence had utterly immobilized him.
His lips moved, the words weak, barely above a whisper.
"N-Nomu… KILL HIM!!"
For the first time since appearing, the monstrous creature reacted.
It moved.
A blur of black flesh and monstrous power surged forward. The air around it howled as a violent windstorm erupted in its wake, a sheer testament to the raw force behind its movement.
A tornado of dust and debris spiraled into the sky as the Nomu's charge caused the very ground beneath it to crack.
Then—silence.
As the dust settled, the scene before them became clear.
Radahn hovered in the air, completely unscathed.
In his left hand, he held something grotesque—Nomu's severed arm.
His right hand was wrapped around Nomu's throat, fingers sinking into the flesh of the bioengineered monster.
Nomu, despite the brutal injury, remained completely expressionless. Its arm had been ripped clean off, yet it made no indication of pain, no reaction to the sudden loss.
Radahn narrowed his glowing golden eyes as he tightened his grip around the Nomu's throat, feeling the unnatural texture of its flesh.
'Hm… what is this thing?'
His fingers pressed deeper, yet the creature showed no pain, no struggle beyond its mechanical movements.
'It looks alive and yet, it isn't. Undead, perhaps? No, even the undead have some semblance of resistance. This thing, it follows orders and feels manufactured.'
His gaze flickered toward the gaping hole where he had torn off the Nomu's arm. No blood poured from the wound, only muscles and flesh wobbling. A being made purely for combat. No fear, no hesitation, no humanity. Just an instrument of destruction.
His thoughts darkened.
'This world isn't as peaceful as I first assumed.'
From the moment he arrived, he had sensed the underlying structure of this world—one built upon rules, upon a semblance of justice upheld by heroes. But this? This abomination before him was proof that something far more sinister lurked beneath the surface.
Radahn's gaze remained locked on the grotesque creature in his grasp. The torn-off arm in his other hand twitched slightly before going still, its severed muscles exposed. Yet, before he could examine it further, the Nomu's stump writhed.
'What?'
Before his eyes, thick, fibrous muscle rapidly knitted itself back together, reconstructing the limb with unnatural speed. Within seconds, the arm had fully regrown, as if it had never been torn off in the first place.
(A/N: It was all happening in mere seconds , Radahn's thoughts and Nomu's regeneration)
Radahn's golden eyes gleamed.
'So, it heals itself. A rather remarkable healing'
He watched the Nomu's blank expression. remain unchanged. No pain, no reaction—just pure, mechanical instinct.
'This thing isn't just durable. It's designed to outlast its enemies.'
His grip around its throat tightened. 'Very well let's see how durable you truly are.'