The stadium roared like a living beast.

Thousands of voices crashed together in excitement as Class 1-A and the Ecliptara students entered the arena. Flags waved, cameras flashed, and the air vibrated with the crackling energy of anticipation. The Sports Festival wasn't merely a competition — it was a declaration of strength to the world.

And today, the world would witness something it had never seen before.

Vegeta cracked his neck with a smirk. This will be over quickly.
Katsuki's palms popped in sharp explosions. Damn right.

On the opposite end, Izuku took a trembling breath — not of fear, but of focus. I will win my own way... without running from myself.

Kakarot bounced on the balls of his feet, excitement radiating from every freckle. Gon and Killua whispered quick warmups; Lucy stretched, her celestial energy glowing faintly.

The UA Commission cameras fixated on them immediately — they were too powerful, too strange, too unknown not to draw attention.

Present Mic's voice boomed:

"LADIES AND GENTLEMEN — LET THE UA SPORTS FESTIVAL... BEGIN!"

Obstacle Race

The starting gun fired.

Katsuki blasted forward with fury.
Vegeta shot past him with pure speed.
Izuku sprinted, One For All humming.
Killua vanished in a flash of Godspeed.
Sonic laughed as he zipped across the field.
Gon leapt, muscles coiled like springs.
Lucy summoned Virgo to dig a shortcut.
Kakarot and Inuyasha raced each other, laughing the entire time.

Vegeta and Katsuki dominated side-by-side, yelling insults whenever the other tried to gain distance.

At one point, they both shouted:
"GET OUT OF MY WAY—!!"
and blasted half the field behind them.

Let's just say somehow Izuku and Kakarot crossed the finish line first at the same time. 

Cavalry Battle 

Teams formed instantly.

Izuku's team:
Lucy, Gon, and Killua 

Vegeta refused a team.
Katsuki refused a team.
And the teachers reluctantly allowed them because — who was going to stop them?

Yugi activated "Pharaoh's Manifestation," shielding allies.
Ashura battled using Pokémon-like instincts and precision.
Ciel and Ichigo moved elegantly, defending teammates with clever tactics.
Natsu roared flames skyward.

The sky lit with energy beams, explosions, magic glyphs, and ki smashes.

When time ran out—

"TEAM VEGETA AND KATSUKI ADVANCE!" Present Mic cried.
"In the first place... tied! Somehow!"

Vegeta crossed his arms like a prince.
Katsuki snarled, "Fine! BUT I'M FIRST NEXT TIME!"

Izuku's team placed second, much to Todoroki's shock.

Final Battles 

The brackets were brutal.

Izuku vs Todoroki
Shoto unleashed ice — but Izuku detonated through it.
He spoke calmly, firmly:

"You don't have to be your father. Use your fire. Use yourself."

It cracked open Todoroki's heart.

Fire exploded across the arena.
Izuku smiled through the burn.
And won.

Kakarot vs Vegeta
The Saiyan mates clashed like titans.
Shockwaves leveled the stage.
Kakarot laughed, exhilarated — Vegeta smirked, pride swelling.

But Vegeta's power, experience, and ferocity overwhelmed the younger warrior.

"You're strong," Vegeta said, panting. "But not strong enough, my Koi~"

Kakarot grinned. "Next time!"

Final Fight — Katsuki vs Vegeta
A battle of explosions and ki.
The ground cracked.
The sky rumbled.
Neither refused to fall.

The final blow was simultaneous —
Vegeta's ki cannon
and
Katsuki's Howitzer Impact.

Smoke consumed the arena.

When it cleared—
Both stood.
Barely.
Bleeding.
Unyielding.

The scoreboard glitched.
Judges panicked.

Midnight declared—

"IT'S A TIE!!"

The stadium erupted.

Vegeta's smirk radiated arrogant pride.
Katsuki wiped blood from his lip and grinned back.

Respect.
Finally.

Beyond the stadium, in a dim monitor room, Tomura Shigaraki scratched his neck until blood welled.

"Those six," he hissed. "Those six are the problem."

On the screen, multiple live angles zoomed in on:

Kakarot
Izuku
Gon
Lucy
Ashura
Katsuki

"All too powerful... all too unpredictable. And All For One wants the green-haired brat especially."

He slammed a hand against the monitor, crumpling the corner.

"We'll take them. One way or another."

Nezu approved a "hero-learning vacation" to I-Island. The trip to I-Island was supposed to be a breather.

A pause.

A chance for the group's tangled constellation of lovers, mates, rivals, and exhausted parents to catch their breath before the next chaotic stage of hero training. They had left their children with their parents that morning — a tearful, kiss-filled goodbye where even Vegeta lingered longer than he meant to, brushing his thumb over the cheek of his smallest daughter before grumbling, "Don't you dare grow while I'm gone."

Kakarot hugged all twelve of their toddlers at once, laughing breathlessly as tiny hands tried to climb his hair. Izuku whispered last soft promises into Izari's hair, and Katsuki kissed each of his kids on the forehead with an awkward gentleness he would deny until the day he died. Ashura tried not to tear up as his youngest clung to his shirt.

Only after every child was soothed, hugged, and distracted with the promise of treats did the group turn toward the city outskirts — toward U.A., toward the bus waiting to take them to the floating island of miracles.

They had no idea the next month would tear their world apart.

I-Island gleamed like polished gold under the sun.
The group stepped off the boat expecting scientists, tourists, and the hum of research.

They did not expect to see Class 1-A.

"Wait—Aizawa?" Uraraka blinked rapidly. "What are you doing here?!"

Izuku froze mid-step. "I-I could ask you the same thing?!"

Beside him, Lucy raised a hand politely while Natsu yelled, "NO WAY! YOU GUYS TOO?!" loud enough that half the plaza turned to look.

Vegeta clicked his tongue. "Of all the miserable coincidences."

Katsuki was less polite. "Are you kidding me? I can't escape these extras even on a floating island?"

Sonic zipped forward in a blur, screeching to a stop beside Iida. "Hey, Four-Eyes! Bet you didn't think you'd see me again."

Iida adjusted his glasses. "I admit — this is unexpected."

Unexpected didn't begin to cover it.

The expo dazzled at first — floating holograms, prototype support gear, weapons sealed behind reinforced cases that made Vegeta snort, "Pathetic Earthling toys."

David Shield greeted All Might with a polished smile that fooled no one.

The group felt it long before alarms blared —
the shift in the air, the creeping presence of danger slinking beneath the hum of machinery.

When villains stormed the facility, Class 1-A reacted well.

But the group reacted like veterans of war.

Inuyasha slashed through steel doors to free trapped hostages. Ichigo blitzed through the hallways of armed men like a phantom. Gon and Killua moved together with practiced silent efficiency. Lucy summoned Taurus, Leo, and Virgo without hesitation. Yugi's Millennium Puzzle glowed faint gold on his chest as he commanded spectral constructs to shield civilians.

And Kakarot — sweet, smiling, easygoing Kakarot — snapped into terrifying focus, fighting with precision born from centuries of Saiyan instinct.

When it ended, Class 1-A celebrated their success.

But in private, behind sealed walls, the group cornered All Might and David Shield.

Vegeta folded his arms and gave a single disdainful hum. "Your security was laughable."

Paul crossed his arms. "This wasn't an 'unexpected breach.' This was negligence."

Ciel added sharply, "People died today because of your oversight. Do better."

Even gentle Tanjiro's voice hardened. "Heroes can't afford ignorance."

All Might—shaken, tired—nodded without arguing.
David Shield bowed his head, unable to defend himself.

The month after I-Island passed in a strange, tense blur.

News networks replayed footage of the villain's attack day and night.

Parents clutched their children tighter.

Pro-hero agencies buzzed with rumors.

And the group — Vegeta, Katsuki, Natsu, Elias Nocturne, Killua, Paul, Ciel, Ichigo, Kakarot, Tanjiro, Danny, Lucy, Gon, Gozu, Inuyasha, Izuku, Ashura, Yugi, and Sonic — prepared for the next trial U.A. had to offer. They boarded the buses bound for the Forest Training Camp, a mix of boredom, bickering, and silent anticipation filling the space between them.

Natsu tried to roast marshmallows over the emergency ceiling light.

Killua hung upside-down from the luggage rack like it was normal.

Gon cheerfully waved at every passing car.

Paul lectured Sonic for tapping his foot too fast.

Lucy braided her hair while leaning on Tanjiro's shoulder.

Ciel wrote curt notes in a pristine planner.

Ichigo slept with his arms crossed and one eye half-open, pretending not to be on guard.

Izuku sat near the window, thinking about how many diapers they'd packed for the kids before leaving them with their grandparents. Ashura squeezed his hand under the seat.

Kakarot offered snacks to everyone.
Vegeta refused every single one — then stole a granola bar anyway.

It was chaotic, it was loud, it was domestic, and somehow it worked.

The buses rumbled to a stop at the cliff's edge, where the Wild Wild Pussycats greeted Class 1-A and 1-B with flair. Mandalay waved, sparkling in the afternoon sun, while Pixie-Bob practically foamed with excitement at the "young studs" she wanted to mold into powerful heroes.

"Try it," Vegeta muttered to Natsu. "See what happens."

Then Kota stepped out from behind Mandalay.

Small.
Scowling.
Hands shoved into his pockets.

His eyes scanned the crowd—

—and locked on Izuku.

The moment was strange, silent, almost gravitational.
Izuku blinked, unsure what he did.

Kota's scowl deepened.

Then Kaminari bounced forward with a cheesy grin.
"Hey, little guy—"

Kota hauled back and punched him in the balls with terrifying accuracy.

Kaminari dropped like a stone.

Vegeta barked out a sharp laugh. "I officially like this one."

Izuku panicked, crouching beside the boy.
"K-Kota! You can't just—Kaminari, are you okay?! Kota, sweetie—"

Kota grabbed Izuku's shirt, hiding behind him like he'd found the safest adult in the world.

Mandalay's eyes widened.
"He... he's never done that before."

Pixie-Bob tilted her head.
"He likes the green one!"

Kota clung tighter.

Izuku melted into a confused puddle of parental instinct.

Ashura, amused, whispered, "Looks like you've been adopted," making Katsuki and Izuku look at each other nervously.

The first day of training was explosive.

Literally.

The Pussycats released Class 1-A and 1-B into the forest, and the group tore through monsters like they were made of paper.

Vegeta blasted clean craters into the earth.
Kakarot punched a massive beast so hard that it vaporized.
Ichigo flash-stepped through five enemies before anyone blinked.
Danny phased through trees and startled Pixie-Bob half to death.
Inuyasha cleaved apart boulders with Tessaiga.
Killua electrocuted anything that breathed too close.
Natsu set half the mountain on fire until Lucy screamed at him.
Gon bounded through the treetops with animal-like grace.
Gozu rammed through obstacles like a one-man demolition team.
Yugi summoned Duel Monsters to "help," sending Class 1-B running in fear.

Sonic was a blur, leaving dust trails and destruction behind him.

And Izuku — finally confident in his mixed quirk-Saiyan-demi-god-demigod heritage — used controlled bursts of power that made even the pros whistle.

The following days were full of sweat, shouting, training, arguments, and a few near-death experiences. They cooked meals together, argued over fires, bathed in cold streams, and slept in piles of tangled blankets and limbs like the exhausted, mismatched, fiercely loyal family they were.

The students of U.A. began to warm to them.

And then the third day arrived.

.

.

.

.

The air changed first.

A strange pressure, cold and violent, rolled through the forest.
Animals went silent.
The moon dimmed.
Pixie-Bob dropped the pot she was holding.

Then the screaming began.

Dabi's blue flames lit the treetops.
Toga giggled in the shadows.
Muscular tore through trees like they were matchsticks.
Twice flooded the camp was flooded with clones.
Nomu swarmed like monsters of nightmares.

And Shigaraki—
hands twitching, grin stretching wide—
stepped into the clearing.

Kakarot, Izuku, Gon, Lucy, Ashura, and Katsuki were separated within minutes.

Warp gates swallowed them.

Screams echoed.

Ashura's eyes went red with Omega panic.
Katsuki exploded four villains at once, trying to break free.
Kakarot roared with a rage that shook the air.

But they were gone.

And the rest of the group fought like hell to get them back.

The League thought their captives were scared children.

They forgot they were:

A Saiyan.

A Chosen One.

A Hunter prodigy.

A Celestial Spirit mage.

A god-touched Omega.

An alpha with explosions that could level mountains.

The moment restraints snapped?

Hell broke loose.

Kakarot ripped through steel walls like cardboard.
Lucy summoned Gemini, Leo, and Aquarius simultaneously, flooding the hideout.
Gon shattered his cell door with raw Nen.
Ashura used his quirk and Saiyan strength to tear apart the floor.
Katsuki detonated an entire hallway.
Izuku—calm, eerie—walked through the smoke like a force of nature.

Twice screamed.
Toga shrieked with excitement.
Dabi cursed and blasted blue fire.

Shigaraki watched Izuku with wide, fascinated eyes.

"You're even more interesting up close."

Izuku didn't respond.

Because—

All For One stepped from the shadows.

The world tightened around Izuku like a fist.

AFO's voice was deep, distorted, familiar in a way that made Izuku's stomach twist.

"My late wife's son," AFO crooned. "Shota's eyes. Your filthy omegan blood. Inko's spirit."

Izuku's breathing slowed.

He didn't shake.

He didn't fold.

He stepped forward until they were only feet apart.

"You killed my mother."

AFO tilted his head. "And I shaped you."

"You don't get to claim me."

"Everything you are—"

"—is because I survived you."

The air crackled green and black.

And then—

"All For One!"

"All Might!"

The battle erupted.

A god and a demon are clashing, tearing the sky apart.

Izuku stood there, watching the monster who made him motherless— and the hero whom he hated— collide in a fury of quirk explosions and shockwaves that shook the ruined hideout.

In the end, All Might won. All for One is in prison, and All Might retired.

Four Weeks Later...

U.A. issued a public apology, and Nezu announced a new dorm system.

The group... did not take it well.

"You're splitting up mated pairs," Ciel snapped.

"We have other responsibilities!" Lucy emphasized, tears in her eyes.

"Our nest is not negotiable," Ashura added quietly but firmly.

Vegeta slammed his hand into Nezu's desk. "We're not living separately. We're not hiding what we are."

Nezu, who had never been intimidated in his life, blanched slightly.

"I... understand. Let me propose a compromise."

And so U.A. built an apartment-style mega-dorm within Heights Alliance — customized with:

Reinforced walls
Soundproof rooms
Private bathrooms
A nursery
A hidden playroom
Saiyan-proof training space
Magic seals
Ghost-safe doors
Fox-spirit wards
And a huge living space where their entire polycule could sleep in safety

Nobody — not even Nezu — knew they had children.

And the group wanted to keep it that way.

Aoyama was expelled and arrested.
Shinsou joined the class, quickly bonding with Ciel and Elias.

For a moment, it seemed like things might finally calm—

Until breakfast.

.

.

.

.

.

.

.

.

Breakfast in the newly built mega-dorm began the same way it always did—
with absolute, unfiltered chaos.

The cafeteria-sized kitchen buzzed with noise.

Sonic zoomed back and forth at supersonic speed, leaving cabinets swinging open.
"Where is the good cereal? Not the cardboard flakes! I want the sugary stuff!"

"You burned the sugary stuff," Kakarot muttered around a mountain of food.

"That was Natsu!" Sonic shot back.

Natsu, who indeed was fanning smoke off the toaster, shouted, "IT WAS AN ACCIDENT! The toaster offended me!"

Lucy smacked his arm. "Stop picking fights with appliances!"

Killua casually swiped a stack of pancakes from Gon's plate.
Gon gasped dramatically. "Killua! Those were mine!"

"Possession is nine-tenths of the law," Killua replied, stuffing one into his mouth.

Paul facepalmed. "That's not how law works, genius."