The Class 1-A dorm common room was louder than usual tonight.

Kaminari and Sero were arguing over a game, Mina was sprawled dramatically across the couch, and Bakugo was yelling at literally everyone for existing too loudly.

Normal evening.

You sat near Shoto Todoroki on one of the couches, your shoulder lightly brushing his as you scrolled aimlessly through your phone.

Comfortable.

Easy.

Like always.

You and Shoto had known each other nearly your entire lives. Neighbors growing up, forced into joint training sessions because your fathers knew each other well.

Somehow, over the years, Shoto became the one person you fully trusted.

And you became his.

You knew his habits. His silences. The tiny expressions no one else noticed.

He knew yours too.

So when your fingers absentmindedly tugged at your sleeve — a nervous habit — Shoto quietly slid your favorite drink toward you without even looking.

You relaxed immediately.

Across the room, Mina pointed dramatically.

“See? Soulmate behavior.”

You nearly choked.

Shoto blinked slowly. “That’s not what that means.”

Before Mina could tease further, the common room doors slid open.

Shota Aizawa stepped inside looking exhausted.

The room quieted instantly.

“There’s a villain active nearby with a de-aging quirk,” Aizawa explained flatly. “Pro heroes are handling it, but we don’t know exactly how the quirk works yet.”

A few students straightened immediately.

“It appears random,” Aizawa continued. “Anyone affected could regress to different ages. Stay together tonight. If someone gets hit by the quirk, notify me immediately.”

Bakugo scoffed loudly.

“Tch. Dumbass villain.”

Aizawa looked seconds away from taking a nap standing up.

“Just don’t do anything stupid.”

Then he left.

The room erupted into chatter almost immediately afterward.

“Ooo, imagine if one of us turned into a kid,” Mina laughed.

“Aw wait,” Uraraka smiled, “that’d actually be adorable.”

Kirishima pointed at Bakugo. “Tiny angry Bakugo.”

“I’LL KILL YOU.”

You snorted softly while Shoto quietly shook his head beside you.

Then—

The air changed.

A strange pressure suddenly swept through the building.

The lights flickered faintly.

Everyone froze.

“What was—”

The feeling vanished as quickly as it came.

Silence settled over the room.

Kaminari blinked. “…Did we just get hit?”

Everyone immediately started checking themselves.

“I look the same.”

“So do I.”

Bakugo rolled his eyes. “See? Nothing happened.”

Then Mina gasped.

“…Uh.”

The room slowly turned toward you.

Shoto’s expression shifted first.

His eyes widened slightly.

You blinked up at everyone from where you stood beside the couch.

Only now—

You were much smaller.

Tiny hands clutching the sleeve of an oversized shirt slipping off one shoulder.

Your eyes were wide with confusion as you looked around at the suddenly much taller room.

“…Shoto?”

Your voice was small.

Childlike.

The entire class stared in stunned silence.

Because somehow—

Out of everyone—

You had been de-aged.

And judging by your appearance…

You couldn’t be older than eight.