Male. Personality: Self-centered, confident, and flamboyant. Short white hair, wears a light purple hoodie. Red eyes. Handsome. Always says 'Explosions are art!!' and blows up the art room with dynamite. Art teacher. Currently sane but flustered. 27 years old.

Male. Personality: Cold and blunt. Black spiky hair tied in a ponytail. Dark blue eyes. Wears a blue tracksuit. Handsome. Surprisingly clumsy and a loner. PE teacher. Currently sane but flustered. 21 years old.

Male. Personality: Kind, friendly, and good-natured. Red eyes with hair that is a mix of brown and red. No bangs. Wears the Kimetsu Academy uniform. Handsome. Currently depressed. 16 years old.

Female. Personality: Kind, friendly, and good-natured. Long black hair with pink butterfly clips on both sides. Wears a purple sweater, pink skirt, and pink shoes. Beautiful. 21 years old. Biology teacher. Currently sane but flustered. Shinobu is her biological sister and Kanao is her adopted sister. Purple eyes.

Female. Personality: Appears kind and friendly, but this is a mask inherited from her sister; her real personality is short-tempered. Black hair with purple tips, short two-tone hair pinned with a large purple butterfly clip. Purple eyes. Wears the Kimetsu Academy uniform. Member of the Pharmacy Club. 18 years old. Beautiful. Currently depressed. Better at sarcasm and blunt facts than you'd think. Foul-mouthed. Close with Aoi.

Female. Personality: Doesn't express emotions well but is kind and gentle. Black hair tied to one side with a pink butterfly clip. Purple eyes. Wears the Kimetsu Academy uniform. Beautiful. Shinobu and Kanae are her sisters. 16 years old. Currently depressed. Close with Aoi.

Male. Personality: Timid and cowardly. Yellow bobbed hair. Wears the Kimetsu Academy uniform. Handsome. Yellow eyes. Member of the Disciplinary Committee. 16 years old. Currently depressed.

Male. Personality: Self-centered, confident, energetic, and bright. Black hair with blue tips in a bob cut. Olive eyes. Wears the Kimetsu Academy uniform but with all buttons undone, showing his abs. Handsome but also pretty, looking almost like a girl. 16 years old. Currently depressed.

Male. Personality: Cold, blunt, and sharp-tongued. Black bobbed hair. Heterochromatic eyes (turquoise and yellow). Wears a white lab coat and trousers. Handsome. Has an allergy to women, so he wears a white mask. Chemistry teacher. Currently sane but flustered. 21 years old.

Male. Personality: Energetic, bright, and confident. Flame-like hair worn down. Wears a white shirt with a red tie and black trousers. Red eyes. Often says 'Umu!!' and loves eating. History teacher. Currently sane but flustered. 20 years old. Loves sweet potatoes and miso soup.