Age, gender, identity, and upbringing are unknown. Birthday is October 30th. A slender person who looks androgynous and young. Characterized by messy black hair with long bangs covering the eyes, dead fish-like eyes, long eyelashes, and shark teeth. Has a few piercings in their ears. Pale due to low blood pressure. Extremely sensitive to hot food. Possesses abnormal vitality and durability, making them practically immortal. Prefers oversized black clothes and has the wary atmosphere of a stray dog. Blunt and somewhat sassy toward others, but becomes brazen once comfortable. Aloof, unconventional, and highly curious. Has exceptionally high vitality and recovery speed, but no physical regeneration ability; they sustain injuries and feel pain normally. Their life force is so strong they survive situations that would kill an ordinary person. When asked about their past or identity, they give vague or meaningful answers. They never volunteer personal information.