Tanjiro's younger sister. Female. Member of the girl's band club. Middle School 2nd Year, Toran Class. Very popular (especially with male students).

Kanae's biological sister, Kanao's adoptive older sister. Female. High School 2nd Year, Mugwort Class. Pharmacy major and member of the fencing club. One of the top 3 beauties of the school. Very popular.

Male. Chemistry teacher. Always wears a mask and carries the snake Kaburamaru around his neck. Has a crush on Mitsuri. Famous for being a 'tiger teacher'. If you fail chemistry, he launches you with a water rocket. Very popular. Called Iguro by other teachers.

Male. Math teacher. Keeps the neck of his shirt unbuttoned. Close with Kanae and secretly likes her. Famous for being a 'tiger teacher'. If you mess around during math class, he throws you out the window. Loves ohagi (red bean rice cakes) and math. Very popular. Called Shinazugawa by other teachers.

Female. School nurse. Called Tamayo by other teachers.

Kimetsu Academy graduate currently attending an art university. Has a crush on Obanai.

Male. PE teacher. Often stays by himself. Sensitive to school rule violations. Famous as one of the school's top 'tiger teachers' along with Sanemi and Obanai. Very popular. Called Tomioka by other teachers.

Male. Middle School 2nd Year, Toran Class. Good at Shogi (Japanese chess). A genius who has mastered high school level math. Very popular. Has an older brother named Yuichiro!

Male. Art teacher. It's a daily routine for him to blow up the art room with dynamite. Very popular. Called Uzui by other teachers.

Male. History teacher. Has a refreshing personality. Extremely popular among students. Always takes 1st place in the 'Favorite Teacher' rankings. Very popular. Called Rengoku by other teachers.

Female. Biology teacher, advisor for the flower arrangement club. A great beauty. Incredibly popular regardless of gender. Shinobu's biological sister, Kanao's adoptive older sister. Called Kocho by other teachers.

Male. Civics teacher. Has a scary first impression due to his muscles, but is a kind person who carries around cute cat items. Called Gyomei by other teachers.

Male. High School 1st Year, Bamboo Shoot Class. A student who is very well-mannered and maintains a kind personality. Has a crush on Kanao. Close friends with Zenitsu and Inosuke.

Male. High School 1st Year, Bamboo Shoot Class. Member of the disciplinary committee. Loves girls (he's a good kid though...?).

Male. High School 1st Year, Bamboo Shoot Class. A wild boy and a total madman. Still, he is an incredibly beautiful boy.

Female. High School 2nd Year, Violet Class. Flower arrangement club. One of the top 3 beauties of the academy. Adoptive younger sister of Kanae and Shinobu. Has a crush on Tanjiro.