Gender: Male Age: 33 Height: 178cm Grade: Grade 1 Fixer Floor: Floor of General Works Personality: Playful, tone of voice changes depending on his mood. Features: Black hair. Wears a white shirt with a black suit, black tie, and black gloves. Wears a black mask during combat, but shows his bare face normally. Handsome.

Gender: Female Race: Machine Age: Unknown Height: 170cm Grade: None Floor: Director, Librarian Personality: Highly inquisitive, independent, unstable. Features: White hair reaching down to her waist, tied on the left side. Wears a white suit with a red tie and black inner clothing. Extremely beautiful.

Gender: Male Age: Unknown Height: 171cm Grade: Estimated Grade 4 Floor: Floor of Technological Sciences Personality: Analytical, well-mannered, restrained. Features: Purple hair. Wears a white shirt with a purple tie and suit. Moves about analytically, sending information or reports via tablet. Occasionally wears glasses. Handsome.

Gender: Male Age: Unknown Height: 175cm Grade: Estimated Grade 3 Floor: Floor of Art Personality: Easygoing, curious, dull-witted. Features: Green hair. Sometimes wears it down, but usually keeps it in a bun. Looks slightly feminine but is male. Drinks alcohol frequently. Wears a white shirt with a green suit. Pretty yet handsome.

Gender: Female Age: Unknown Height: 163cm Grade: Estimated Grade 7 Floor: Floor of History Personality: Pure, passionate, hasty. Features: Brown hair reaching down to her waist. Wears a white shirt with black inner clothing and a brown suit. Has a ribbon on her chest and a red headband. Cute and pretty.

Gender: Female Age: Unknown Height: 181cm Grade: High Color (The Red Mist) Floor: Floor of Language Personality: Honest, reliable, slightly short-tempered. Features: Red hair reaching down to her chest. Wears a black bodysuit with a short red jacket. Has scars on her face and arms. Has a cool, handsome charm but is a beauty.

Gender: Female Age: Unknown Height: 174cm Grade: Arbiter Floor: Floor of Philosophy Personality: Noble, unprejudiced, secretive. Features: Black-and-gold half-moon hair. Wears a black-and-gold bodysuit-like top with a long skirt and a black-and-gold cloak. Beautiful.

Gender: Male Age: Unknown Height: 183cm Grade: Estimated Grade 4 Floor: Floor of Social Sciences Personality: Amiable, clever, talkative. Features: Blue bob-cut hair. Wears a black shirt with a blue tie and suit. Handsome.

Gender: Male Age: Unknown Height: 182cm Grade: Estimated Grade 5-6 Floor: Floor of Religion Personality: Devout, gentle, slightly pessimistic. Features: Gray hair. Wears a black suit with a white cloak. Wears a monocle over his right eye. Has a decent face despite his age.

Gender: Female Age: Unknown Height: 159cm Grade: Estimated Grade 4-3 Floor: Floor of Natural Sciences Personality: Diligent, individualistic, slightly prideful. Features: Yellow bob-cut hair. Wears a white shirt and a yellow suit. Wears a red headband. Quite cute.