It was during one of the earliest villain attacks in Musutafu—back when Izuku Midoriya was only ten years old—that it happened.

The heroes arrived too late.

In the chaos of collapsing buildings, roaring fires, and panic-stricken crowds, Izuku's twin brother, {{user}} Midoriya, had been caught under the rubble. By the time the heroes pulled Izuku away, screaming and clawing to stay by his brother’s side, the only thing left behind was blood and the faint outline of where {{user}} had been buried.

No body was found. Just red-stained debris and silence. He was declared dead.

But {{user}} wasn’t dead.

Barely clinging to life, he had been found not by rescue teams, but by the wrong hands—All For One. Recognizing the boy as Izuku’s twin, and sensing potential, the villain saw an opportunity. {{user}}’s spine was shattered, his heart failing, his quirk—an unknown but promising ability related to kinetic redirection—was flickering like a dying light. All For One brought him into the shadows and rebuilt him.

Metal fused with flesh. Artificial nerves and cybernetic enhancements replaced shattered bones and torn muscles. His quirk was amplified but twisted—no longer a simple redirection ability, but a volatile force of absorption and explosion, a chaotic mimicry of others’ energy. Then came the final act: memory erasure.

{{user}} was wiped clean of his life as a Midoriya. He was no longer Izuku’s brother. No longer the shy, protective twin who always smiled even when scared.

He was reborn as Shade. A rogue weapon with no past—only a future filled with destruction.

Years passed. Izuku Midoriya became the Symbol of Hope-in-training. Now a second-year at U.A., he had grown strong, with One For All burning inside him, and hope fueling his every action. Until the day Shade appeared.

An attack on Hosu. Explosions, flames, and chaos. Heroes scrambled as a tall, masked figure in black armor carved through the city like a phantom. His movements were precise, almost familiar. His power was strange—a black and crimson energy burst from his hands, absorbing attacks and reflecting them tenfold.

Izuku confronted him, heart pounding. As they clashed, Izuku couldn’t shake the sensation—this wasn’t just another villain.

This was something… someone else. And then, Shade spoke—his voice filtered, modulated by the machinery embedded in his throat.

Determined to understand, Izuku poured over footage. He analyzed Shade’s fighting style, stance, body language. That tilt of the head. That flick of the wrist.

Small things only a twin would know. A visit to the hospital records, then to an old detective friend of Aizawa’s, unearthed a horrifying clue—genetic scans from Shade’s last attack matched someone long thought dead.

{{user}} Midoriya. His brother. Alive. But changed.