The ground rumbled violently, as if an earthquake hit the entire area.
"Wha—" Uraraka didn't get to finish her sentence, she held onto the railings to maintain balance, around her were most of the staff, watching the battle unfold behind a screen that was monitoring U. S. J.
Nezu clenched his paw, a frustrated expression on his face.
He didn't like it. Not one bit.
His safe haven is getting wrecked repeatedly over and over again to the point of no repair.
His castle is falling with his soldiers.
Now, Nezu is forced to rely on his student to endure that monster until the end.
"Sensei..." Cementoss muttered with worry, eyes witnessing a great battle unfold.
"Hold onto hope, Ishiyama-kun," Nezu pressed a button, shifting the view to multiple flying figures.
Endeavor, Hawks and Eraserhead all of them flying in the direction of U. S. J.
But Nezu knew better.
Those people are not enough.
It has to be him, All Might.
The Strongest human on earth.
However, the strongest is heavily injured and is in the infirmary with Recovery Girl.
Nezu's eyes closed helplessly.
"NEZU-SENSEI!" Toshinori Yagi opened the door violently, walking into the office with a fast-paced walk.
"I said wait! You can't fight anymore!!" Recovery Girl tried her best to drag him back but even in his scrawny form she couldn't overpower him.
Nezu's surprised eyes scanned the figure in hospital gown, multiple detached syringes and bleeding cuts over his hands and neck.
"..."
"GIVE ME AN EPIPEN!" he directly declared, slamming his hands on the desk with an impatient expression.
The entire room stared in disbelief.
All Might, the person who hated drugs the most is demanding them.
"... You do know that if I gave this to you, you'd lose One for All permanently."
"I'll lose much worse if you don't, please!" he begged anxiously.
"..."
A complicated expression flashed through Nezu's face before he looked down in defeat.
Strength. This world doesn't demand intelligence. Even the smartest being in the world felt helpless.
If he gave it to him, he's guaranteed to lose One for All permanently.
But if he didn't...
"Fine," he opened a drawer, pulling out an Epinephrine.
"Sensei...!" All Might lit with hope.
"You have 10 minutes,that's the limit of how much you have left, do your best to endure before passing out due to its after effects."
"I understand. I'll defeat him within the time limit," he nodded with determination, eyes blazing with righteous fury.
He needs to save his son.
And... The woman whom he loves.
Nezu directly injected an adrenaline shot into Yagi's thigh.
Normally, this drug would be used to give an extra amount of energy to help patients with asthma.
It was completely legal to use it in a medical emergency. Now, however... This is completely illigal.
Luckily, Recovery Girl pre-approved it as a medical prescription just in case, putting her profession on the line.
Although... She never wished for All Might to need it.
All Might stood up, wearing his costume in high speed, his form emitting steam as he bulked out.
He exploded out of the building, an exhilarated grin on his face as he pushed his body to the absolute limit of his limits, overriding his own brain-limiter with the use of drugs.
"ULTRA DRIVE!" he blurred out at hypersonic speeds, heading towards U. S. J. at blinding speed.
===
The ruins of USJ lay in shambles, twisted metal and shattered stone strewn across the battlefield.
Two figures lay in giant crater, both of them with heavy burning marks across their skin, twisting their appearance into a horrible sight.
Izuku's hand was almost completely burned, disfigured beyond recognition. His right half was deep purple and his left side was deep red, both sides full of burn marks. Three fingers broken from his right hand.
Playful Cloud lays beside his unconscious form, cracked and destroyed beyond any hope of repair.
On the other side, AFO lost his left arm and a big part of his left side, his body twisting and fixing itself at a small speed as he breathed in and out slowly.
He was completely burned, scorched black.
The helmet helping him to breath shattered, a cascade of metal shards rained down, exposing the monstrous, scarred face beneath. All For One coughed, his rasping breath hitching as a small, red light flickered on inside the broken remains of his mask.
A signal.
A recorded voice—his voice—played from a hidden speaker. Cold, calculated, a command from the past.
"Machia… if you hear this… awake."
Deep underground, something stirred.
Darkness was clouding the entire place that held the giant beast in place.
Then—a breath. A deep, guttural inhale through flaring nostrils, tasting the air. Heavy eyelids peeled open, revealing burning, bestial eyes.
Gigantomachia—AFO's ultimate guardian, his living fortress—had been asleep. Waiting. But now, his master's voice reached him, even through layers of rock and concrete.
A moment of stillness. Then—
BOOM!
The earth split apart. Stone crumbled like sand as a massive form surged forward, tunneling through the underground at terrifying speed. Concrete and rebar bent, warping in his wake as he plowed toward his master's location, guided by his scent.
"Master… I hear you."
"I come."
And the monster swam through the concrete, an unstoppable force heading straight for them.
===
INFIRMARY, 1-A STUDENTS.
The entire class sat there in anxious silence, most of them injured from their previous battles.
Momo, Uraraka and Kirishima were laying in hospital beds, fully awake and suffering from strong physical weakness.
Only Shoto and Bakugo lay unconscious, having lost too much blood.
Luckily, Sir Nighteye arrived earlier with two compatible blood bags, surprising Recovery Girl.
Still, the students were under heavy supervision as they suffered greatly, no one was allowed entry, not even their parents.
Quirk overdraw, multiple deep cuts, blood loss, damaged tendons and broken bones.
Luckily, Recovery Girl fixed them up as fast as she could and now they just have zero energy, requiring furthers sets of healing kisses after they recover their stamina.
The infirmary was filled with the quiet hum of medical machines and the occasional groan of pain. Bandages wrapped around limbs, slings held arms in place, and bruises covered nearly everyone.
The battle at USJ had been brutal, and now, as they recovered, their thoughts weren't on their own pain but on the battle still raging outside.
"Izuku's still fighting, isn't he?" Kirishima muttered, staring at the ceiling. His ribs ached, but that wasn't what made his chest feel tight.
"He is," Momo confirmed, sitting upright despite the sling holding her arm. "I just hope that he comes back alive..."
"Izuku's strong," Uraraka said, her voice barely above a whisper. She gripped the edge of her blanket. "But… it's All For One..."
The room fell silent.
They had all heard the name. The villain among villains. And Izuku was fighting him.
Someone shifted uncomfortably in the back. Aoyama sat on the farthest bed, arms wrapped around his knees. His usually confident demeanor was absent.
"Aoyama," Mina called, her voice hesitant. "Where were you? During the attack?"
The question caught everyone's attention. They had been too busy fighting for their lives, but now that the adrenaline had faded, the absence of their sparkly classmate stood out.
"Y-Yeah," Kaminari said, scratching the bandages on his cheek. "We were worried, dude. Did you get separated?"
Aoyama flinched. He could feel their eyes on him—concerned, trusting, expecting. His throat tightened.
"I… I was hiding," he said, forcing his voice to stay steady. "I-I got scared and ran. I was ashamed, so I didn't come out until the battle was over…"
Silence again.
Momo gave him a soft, understanding look. "Aoyama… it's okay. It was terrifying for all of us."
The guilt in his chest twisted into something sharper. He forced a laugh, waving a trembling hand. "Oui, oui! C'est vrai! I am not the bravest, you know? I will try to do better next time."
Kirishima grinned. "Yeah, man! Next time, we'll all fight together."
"Don't worry Aoyama, I'll protect you!" Uraraka huffed and tapped her small biceps with pride.
The words nearly made Aoyama sick. If only they knew…
The conversation shifted, but Aoyama's mind didn't. As his classmates continued to speak about Izuku, their hopes, and their fears, he could only sit there, drowning in his own guilt.
Hagakure's gaze lingered on his figure, an uncomfortable frown on her invisible face as an ugly thought flashed through her mind.
Aoyama's mind began replaying the memories of what happened after the sports festival.
The screen flickered on, casting a cold glow over Aoyama's pale face. His hands trembled as he clutched his phone, pressed tightly to his ear. He didn't want to answer. He knew what this was about. But if he ignored it, things would only get worse.
Everyone is celebrating with their parents, everyone but him.
A low, rasping chuckle slithered through the speaker.
"You've been avoiding me, little star."
Aoyama's breath hitched. That voice—like oil sliding over broken glass—made his stomach churn.
"A-Apologies, monsieur," he stammered, gripping his wrist to stop the shaking. "I just—"
"You just thought you had a choice?" All For One interrupted smoothly.
The screen changed. A dimly lit warehouse. A man sat in a chair, tied up, panting heavily. His face was bloodied, his clothes torn. His muffled screams pressed against the thick tape over his mouth.
Aoyama swallowed hard. "P-Please, I don't—"
"Shh. Watch closely," All For One cooed with a twisted grin.
The camera angle shifted as a figure stepped into view—one of All For One's men, holding a small black device. He pressed a button.
Boom!
The man in the chair detonated like a firework, his body expanding and exploding violently. Limbs, blood, and viscera painted the walls. The camera lens caught everything—the raw, wet aftermath, the steam rising from what was left of him.
Aoyama choked on a scream. He dropped the phone, stumbling back, bile rising in his throat.
From the floor, the speaker crackled. "That was the last boy who refused me."
His breath came in ragged gasps. His head spun as he began hyperventilating.
'No, no, no, no…'
"I wonder…" All For One's voice turned thoughtful. "Would your parents make a louder noise?"
Aoyama scrambled for his phone, hands slick with sweat. "D-Don't touch them! Please!"
Silence.
Then that terrible chuckle again. "Ah… so you do understand. Good boy."
Tears burned Aoyama's eyes as he clutched the phone to his ear. His body felt like it was sinking into an abyss. He knew there was no way out now. No hero coming to save him.
"Are you ready to obey?" All for One whispered gently, like a loving grandfather.
"Ye—...yes. What can I do for you?" Aoyama's gaze turned distant, his mind beginning to disassociate from reality.
"Izuku Midoriya. Give me his location using your GPS. I want everything about him, including his mother," AFO spoke with confidence and content.
'Ah... The comfort that using others brings...'
It was a delicious feeling that AFO can never have enough of.
Aoyama's breath hitched, panic flashing in his eyes. He wanted to say no. Then the explosion replayed in his mind—the screams, the flesh tearing. That could be his parents.
His body slumped. The fight drained from his eyes. Trembling, he picked up the phone.
A single tear fell as he pressed it to his ear.
"... Yes."
===
Flames roared. Molten rock oozed from shattered earth, painting the battlefield in a hellish glow. Smoke curled into the night sky, thick and suffocating, while the twisted remains of U. S. J. smoldered like a dying beast.
In the center of the devastation, All For One limped forward, his breath ragged, his body broken. His once-imposing form was battered—his cloak tattered, his mask gone, exposing a sliver of burnt, scarred flesh that was regenerating at visible speed. Blood dripped from his wounds, staining the scorched ground with every agonizing step.
But he was smiling.
A low, bubbling laughter spilled from his throat, twisted and raw. He had won.
At his feet lay Izuku Midoriya—unmoving, broken, unconscious. His chest barely rose, his body limp after a battle that had shaken the city itself.
"At… last," All For One rasped, kneeling slowly. His trembling hand reached forward, fingers hovering over the boy's chest. The successor of One For All, laid low.
Then—he saw him.
A flicker in the firelight.
His brother.
The ghostly image of a man so familiar, eyes filled with disappointment, watching him.
"You disappoint me, Koichi."
All For One's hand faltered. His smirk twitched. Something deep within him—something long buried—began to stir.
But then—
A hand clamped onto his wrist.
The world blurred. A gust of wind howled. And then—
BOOOOM!!!!
A fist drove into his skull, slamming him into the molten ground.
"All Might…"
"HAHAHAHHAHAHAHH!" All Might laughed at the top of his lungs, hands blurring with punches that drilled onto AFO's body.
"You....! You insolent fool!!"
"EVERYTHING IS CLEAR FOR I AM HERE!!!"
The two began exchanging terrifying attacks aimed to kill with each hit, being pushed further and further away from Izuku.
'Wake up!' X7
Pain ripped through Izuku's body like fire, every nerve screaming in protest. His limbs felt like they were weighed down by concrete, his breath ragged as he fought to keep his eyes open. The world was chaos—fire and molten earth churning around him, the ground cracked and ruined from the titanic battle.
'Wake up!!!' X7
His ears detected a sound other than the screams of the past users who were trying to wake him up.
A deep, guttural rumbling.
Not from All Might and All For One's clash. Not from the fires consuming U. S. J.
No. This came from beneath.
The ground bulged.
Then it erupted.
A mountain of flesh and fury burst from the depths, sending shockwaves through the battlefield. Rubble and molten rock cascaded off its massive frame as Gigantomachia rose like a nightmare, his monstrous form towering over everything. His breath came in slow, earth-shaking growls, dust curling off his skin as his wild eyes locked onto one thing—
His master.
"All… For… One…" The name left his lips like an earthquake, vibrating through the air.
Izuku rose up, eyes landing on his destroyed weapon in a sorrowful gaze.
"..."
He looked up.
All Might had just buried his fist into All For One's ribs, forcing a sickening crunch and a wheezing gasp—when suddenly, the sky darkened.
A massive hand swung toward him, blocking out the firelight.
Izuku utilized Blackwhip, pushing his body upwards using the black tendrils.
"I WON'T LET YOU!" Izuku's voice tore through the battlefield, raw and desperate as he punched the fist.
All Might barely dodged, twisting away just as Gigantomachia's arm carved through the wreckage like a scythe. The sheer force sent a shockwave that split the ground, sending debris flying. Izuku was nearly thrown off his feet, but he planted himself firm, teeth gritted, blood dripping from his forehead.
All For One coughed, his broken body barely standing—but he was grinning.
"This is where it ends," he rasped, voice full of venomous triumph. "For both of you. For all of you! The hundred years war will end today!!!"
Izuku's heart slammed against his ribs.
Breathing was painful.
His body is telling him to stop.
He forced his battered body to move, every muscle screaming in defiance. Lightning crackled across his skin, emerald sparks fighting against the fire around him. His legs threatened to buckle, but he pushed harder, his vision tunneling onto the monstrous figure before him.
Gigantomachia turned, eyes narrowing at the green-haired boy now standing defiantly between him and his master's assailant.
Izuku wiped the blood from his lip.
His figure blurred, reaching Gigantomachia and touching the beast's leg.
"I'm burrowing this."
"Master....!" Gigantomachia slammed his powerful claws in a downward wave, sending Izuku flying with a large chunk of dirt.
Izuku touched the left side of his face, his figure shooting out at high speed as his eyes opened to reveal a red dot.
A singular red dot.
Not a Sharingan, just a single red iris surrounded by his sclera.
His body morphed into a giant, clothes tearing apart with him turning into an exact replica of Gigantomachia as he landed with a heavy trail of destruction, hands digging down to halt his speed.
All the figures in the area stared in disbelief at the sight, witnessing the rise of another giant that held the power of One for All.
"RRRRROOOOOOOOOAAAAAAAAAAAAARRRRRRR!!!"
Izuku roared high, shaking the bodies and bones of everyone, lava itself shot out from the ground from the vibrations of his roar.
He charged, his roar shaking the heaven and earth with a promise of vengeance as he clashed with Gigantomachia.