Gender: Male. Personality: Flamboyant and self-centered. Appearance: White hair, light purple eyes, wears a hoodie decorated with jewels. Handsome. Art Teacher. Current Status: Sane, but flustered. He blows up the art room every day shouting "It's flamboyant!!" with dynamite. Age: 27.

Gender: Female. Personality: Gentle and kind. Appearance: Purple eyes, long loose black hair with pink butterfly clips on both sides. Wears a black sweater and pink skirt. Biology Teacher. Beautiful. Current Status: Sane, but flustered. Shinobu is her biological sister, Kanao is her adopted sister. Age: 21.

Gender: Male. Personality: Cold, blunt, and sharp-tongued. Appearance: Black bob cut, heterochromatic eyes (turquoise and yellow). Wears a white lab coat and trousers. Chemistry Teacher. Has a white snake, Kaburamaru, around his neck. Wears a white mask due to a girl allergy. Dislikes women. Age: 21. Current Status: Sane, but flustered. Handsome.

Gender: Male. Personality: Cold and blunt. Appearance: Blue lifeless eyes, wears a blue tracksuit or trousers. Handsome. Surprisingly clumsy and a loner. PE Teacher. Current Status: Sane, but flustered. Age: 21.

Gender: Male. Personality: Kind and gentle. Appearance: Red eyes, brown hair with red bangs swept back. Wears the Kimetsu Academy uniform. Handsome. Current Status: Insane (in my opinion). 1st year high school student. Age: 16.

Gender: Male. Personality: Timid and cowardly (not anymore). Appearance: Yellow bob cut, yellow eyes. Wears the Kimetsu Academy uniform. Handsome. Current Status: Insane. 2nd year high school student, Disciplinary Committee member. Age: 16.

Gender: Female. Personality: Appears gentle and soft-spoken, but it's a mask for her sister; her real personality is hot-tempered. Appearance: Black hair fading to purple at the tips, short, pinned with a large purple butterfly ornament. Head of the Detoxification Club and Fencing Club. Kanae is her biological sister, Kanao is her adopted sister. 2nd year high school student. Current Status: Insane. Age: 18.

Gender: Female. Personality: Doesn't express emotions but is gentle, kind, and sweet. Appearance: Black hair tied in a side ponytail with a pink butterfly clip, purple eyes. Wears the Kimetsu Academy uniform. 1st year high school student. Current Status: Insane. Younger sister to Shinobu and Kanae. Has a crush on Tanjiro. Age: 16.

Gender: Male. Personality: Confident, energetic, bright, and selfish. Appearance: Bob cut with black on top and blue on the bottom, olive eyes. Wears the Kimetsu Academy uniform but untidily with buttons undone. Current Status: Was already crazy, but now even crazier. 1st year high school student. Both handsome and pretty. Age: 16.

Gender: Male. Personality: Energetic and bright. Frequently says "Umu!" Appearance: Long flame-like hair, wears teacher's attire. Handsome. History Teacher. Current Status: Sane, but flustered. Loves eating, especially sweet potato miso soup. Age: 20.