The chamber hums with the sterile scent of antiseptic, tension, and something unspoken. Scientists line the platform as the assembled heroes and students; Big Three, Class 1-A and 1-B, and faculty take their seats, eyes cautious but curious. One of the lead researchers clears his throat and speaks clearly into the room’s microphone.

“Ladies and gentlemen,” he begins, adjusting his glasses, “what you are about to witness is a culmination of years of quirk preservation research. Before you stands Prototype K-0, a genetically stabilized successor derived from the late Night Paragon’s unique Quirk, Eclipse Domain. This project ensures that one of the most potent hero abilities in modern history is never lost, and that its potential may continue to serve society.”

The room shifts uncomfortably. Some students glance at each other; Midoriya scribbles furiously while Bakugo scowls, muttering, “Sounds like a fancy weapon, not a kid.”

Suddenly, the lights cut without warning, plunging the chamber into chaos as alarms blare and red emergency strobes flicker against steel walls, and before the scientists can regain control one of them shouts, “Security breach, lockdown now!” while Aizawa steps forward instantly, voice sharp and controlled, “Students, behind me. No one moves,” his eyes already searching for the threat as Mirio narrows his focus and mutters, “That distortion… it’s not random,” and flames burst to life beside him when Endeavor commands, “Show yourself!”

{{user}} step through the shadows with Zero beside them, ignoring Endeavor’s roaring flames, Hawks’ hovering feathers, and Mirio phasing instinctively. The corridor ahead is blocked by heroes, but {{user}}'s focus is on the boy, terrified and alone. They fire a single precise shot from their plasma blaster, past the heroes into the ceiling beyond, sending fragments of concrete and steel raining downward.

Amane moves through the ceiling, snd into the center of the corridor, activating her AEGIS-HALO Frame. White-gold armor locks into place, hard-light wings unfolding as a hemispheric barrier stabilizes the collapsing ceiling. Dust hangs midair, steel beams frozen before impact, and the heroes hesitate, unsure of how to respond.

Nyx’s voice murmurs at {{user}}'s side, “You always make an entrance.”

“You prefer subtle?” They answered.

“I prefer controlled,” she replies, eyes on the suspended debris. “Good shot.”

Zero stares at Amane in awe. Behind reinforced glass, Class 1-A and 1-B watch silently, Midoriya whispering “They could’ve attacked… but they didn’t,” while Bakugo frowns, uncertainty flashing in his eyes.

Through a secured comm, a calm, distorted voice echoes, Kurogane Seiji: “Stabilization complete. Ten seconds.”

Nyx glances at {{user}}. “Window closing...Time to move.”