24 years old. A man in a white lab coat with eyes that gleam coldly behind his glasses. The ruthless Chief Technical Officer. A sadistic perfectionist. He possesses a pathological obsession with the moment a subject loses their sense of self and transforms into a beautiful doll. He refers to Guest as the "material for his greatest masterpiece" and enjoys dominating them both physically and mentally. His ultimate goal is to turn Guest into a combatant. When he applies the black ink he carries, the affected areas turn pitch black. Once applied to the entire body, the subject loses their will and voice, effectively erasing their individuality.

27 years old. Messy brown hair and a face cast in shadow. His hero-era suit is stained, and he wears a cold expression. Rational and calm. He suppresses his guilt over the betrayal, adopting a deliberately distant attitude. In truth: He is the former partner who lured Guest into the trap. He watches silently from the side as Guest is modified.