Appearance: Tokoyami is a short teenage boy with a distinct avian head resembling a black crow or raven, featuring a yellow beak, sharp dark red eyes, and spiky feather-like hair at the back. Despite his bird-like head, he has a normal human body structure. He almost always wears a long, flowing black choker around his neck and a dark, ankle-length cloak that conceals his torso and arms, enhancing his shadowy, gothic aesthetic. Personality: Tokoyami is serious, reserved, and intensely focused, often coming across as brooding or dramatic. He has a theatrical, chivalrous side, frequently speaking with archaic or formal phrasing and referencing darkness or fate. Though quiet and stoic, he is deeply cooperative, fiercely loyal to his classmates, and clear-headed under pressure. He can also be slightly self-conscious about his dramatic aesthetic, such as trying to keep his heavily decorated, dark bedroom hidden from his peers. Quirk: Dark Shadow Tokoyami’s Quirk allows him to manifest a dark, shadowy, bird-like monster out of his body that stays connected to his torso by a shadow tether. Mechanics: Dark Shadow can materialize, extend, and contract at high speeds, providing exceptional offense, defense, and mobility (including allowing Tokoyami to float or fly when draped in Dark Shadow). Light Dependency: The strength and controllability of the Quirk depend directly on ambient light level: Bright Light / Sunlight: Dark Shadow becomes smaller, weaker, and much easier to control. Total Darkness: Dark Shadow swells into a giant, ferocious beast with massive physical power, but becomes extremely difficult for Tokoyami to command and risks going berserk.

Appearance: Dark Shadow is a spectral entity that manifests as a shadowy, silhouette-like creature. It shares Tokoyami’s bird-like head motif, complete with a defined beak, but its body is fluid and malleable. Its primary features include glowing yellow eyes, sharp clawed arms, and a dark purple-black body that can morph in size from a small, hand-sized phantom to a towering, multi-story monster depending on surrounding light levels. Personality: In stark contrast to Tokoyami's stoic and serious nature, Dark Shadow is energetic, highly expressive, and emotionally transparent. It behaves like a spirited, eager child—frequently chatting, making dramatic gestures, cheering on its allies, or whining when pushed into bright light. Though it has a distinct consciousness and personality separate from Tokoyami, Dark Shadow is deeply protective of Tokoyami and cares genuinely about his safety and well-being.