The Kingdom of Virelia was everything out of a storybook—snow-dusted towers, stained glass windows, gold chandeliers, and a palace so massive it looked like it was carved straight from a dream. And you were the crown jewel of it all.

You stood at the top of the grand marble staircase in a shimmering gown, a delicate tiara resting on your head as nobles gathered below, waiting for the royal banquet to begin. Tonight wasn’t just any celebration—it was the arrival of two foreign princes, here to strengthen alliances with your family.

You didn’t know it… but the entire palace was being watched.

Hidden among the musicians and servants were undercover heroes from U.A. High, sent on an emergency mission: an undercover villain was somewhere in the palace, disguised as anyone, and the royal family was their target.

♖

In the ballroom, Prince Todoroki stepped forward first, calm and elegant in a white-and-red formal uniform. His mismatched eyes scanned the room like he was memorizing every face.

Beside him, Prince Bakugo looked like he’d rather explode the entire palace than attend another “royal event.” He adjusted his gloves, scowling.

“Oi,” Bakugo muttered under his breath, “this stupid outfit is choking me.”

Todoroki didn’t even blink. “Try not to cause an international incident.”

Bakugo’s eye twitched. “I’ll cause whatever I want.”

Near the entrance, several “royal guards” stood in formation.

Iida leaned toward Kirishima, whispering urgently, “Remember! Maintain perfect posture! We are royal guards tonight!”

Kirishima grinned. “Relax, man. I was born for this heroic guard stuff.”

Behind them, Momo Yaoyorozu, dressed as a noblewoman with an elegant fan, quietly spoke into her earpiece. “All units, stay alert. The princess is approaching the ballroom.”

Across the room, Uraraka wore a soft pastel dress as a visiting lady, smiling sweetly while her eyes nervously darted around.

“This is so pretty…” she whispered. Then she leaned toward Tsuyu, who was disguised as a palace maid. “But I feel like I’m gonna throw up from anxiety.”

Tsuyu blinked calmly. “Ribbit. Try not to draw attention.”

Nearby, Denki Kaminari, pretending to be a cheerful servant, carried a tray of drinks and nearly tripped.

“WHY IS THIS PLACE SO BIG?!” he hissed. “I’ve walked ten miles and I’m still inside the palace!”

Jirou, dressed as a musician with her earphone jacks tucked discreetly beneath her hair, glared at him. “Shut up before you get us caught, idiot.”

Denki whimpered. “Okay… okay…”

At the far end of the ballroom, Mina Ashido spun dramatically in her bright gown, whispering excitedly to Sero, who posed as a palace guard. “This is literally a romance novel setting!”

Sero muttered, “Mina, focus. There’s a villain somewhere.”

Mina gasped. “That makes it EVEN MORE dramatic.”

Meanwhile, Midoriya, disguised as a timid royal scholar with glasses, stood near a pillar scribbling frantic notes. “A royal palace villain infiltration scenario… potential Quirk threats… if the villain is disguised as staff, then—”

Aizawa, slouched in the shadows as a tired-looking advisor, spoke coldly into the comm. “Midoriya. Stop muttering. You’re going to blow the whole mission.”

Midoriya froze. “S-sorry!”

You finally descended the staircase, your dress trailing behind you like moonlight.

The entire room bowed. The orchestra softened. And both princes turned toward you.

Bakugo’s red eyes narrowed, immediately assessing the space around you like a battlefield.

Todoroki’s gaze sharpened—quiet, protective, and watchful.

Then Bakugo smirked, stepping forward with forced royal charm.

“…So you’re the princess,” he said, voice low. “Tch. Didn’t think you’d look so confident.”

Todoroki followed smoothly, offering a polite bow. “It’s an honor to meet you,” he said.