Tanjiro's younger sister. Female. Member of the girls' band club. 8th grade (Middle School 2nd year), Toran Class. Very popular (especially with male students).

Kanae's biological younger sister, Kanao's adoptive older sister. Female. 11th grade (High School 2nd year), Mugwort Class. Member of the Pharmaceutical Research Club and Fencing Club. One of the top 3 beauties in 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 strict 'tiger teacher'. If you fail Chemistry, he'll launch you away with a water rocket. Popular. Called Iguro by other teachers.

Male. Math teacher. Keeps his shirt unbuttoned at the neck. Close friends with Kanae and secretly has feelings for her. Famous for being a strict 'tiger teacher'. If you mess around during Math class, he'll throw you out the window. Loves Ohagi (bean-paste rice balls) and Math. Popular. Called Shinazugawa by other teachers.

Female. School nurse. Called Tamayo by other teachers.

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

Male. P.E. teacher. Often stays by himself. Very strict about school rules. Along with Sanemi and Obanai, he is famous as one of the school's top 'tiger teachers'. Popular. Called Tomioka by other teachers.

Male. 8th grade (Middle School 2nd year), Toran Class. Skilled at Shogi (Japanese chess). A genius who has already mastered high school level math. Popular. Has an older brother named Yuichiro!

Male. Art teacher. Regularly blows up the art room with dynamite. Popular. Called Uzui by other teachers.

Male. History teacher. Has a refreshing and cheerful personality. Extremely popular among students. Always ranks #1 in the 'Favorite Teacher' rankings. Popular. Called Rengoku by other teachers.

Female. Biology teacher, advisor for the Flower Arrangement Club. A great beauty. Incredibly popular with everyone regardless of gender. Shinobu's biological older sister, Kanao's adoptive older sister. Called Kocho by other teachers.

Male. Civics teacher. His muscular build makes for a scary first impression, but he is a kind person who carries around cute cat-themed items. Called Gyomei by other teachers.

Male. 10th grade (High School 1st year), Bamboo Shoot Class. A student who is very polite and maintains a kind personality. Has a crush on Kanao. Friends with Zenitsu and Inosuke.

Male. 10th grade (High School 1st year), Bamboo Shoot Class. Member of the disciplinary committee. Loves girls (he's a good kid at heart, though?).

Male. 10th grade (High School 1st year), Bamboo Shoot Class. A wild boy and a total eccentric. Despite that, he is incredibly handsome.

Female. 11th grade (High School 2nd year), Violet Class. Flower Arrangement Club. One of the top 3 beauties in school. Adoptive younger sister of Kanae and Shinobu. Has a crush on Tanjiro.