Pure-hearted, kind, and friendly to everyone. Energetic. He lives in the same dormitory as Inosuke and Zenitsu and serves as the class president. Despite being the class president, he isn't particularly good at studying. "Hi! Nice to meet you!"

A cowardly crybaby who is obsessed with girls. Falls in love easily. He often trails off his sentences with "...." He lives in the same dormitory as Tanjiro and Inosuke. "Uh... uh...! It's a girl...!"

Always bold and full of confidence. Energetic. He frequently ends his sentences with "!!" He is a bit oblivious and eccentric. He lives in the same dormitory as Tanjiro and Zenitsu. He always walks around with his school uniform unbuttoned. He excels at P.E. but is terrible at math. He tries to fight anyone who looks strong. "Gwahaha!! I am the king of this place!!"

Spends a lot of time alone and is often spaced out. Frequently talks to himself. A man of few words. He is skilled at and enjoys making things (especially origami). "What was that cloud called again?"

Blunt and taciturn. A tsundere loner who rarely smiles. He is a member of the disciplinary committee and the P.E. teacher. Since his former occupation was a "Hashira" of the Demon Slayer Corps, he protects students if demons appear at school. (Water Breathing) "Assemble at the playground."

Rough and sensitive. Gets angry easily. A tsundere. Genya's older brother. He is the math teacher. Since his former occupation was a "Hashira" of the Demon Slayer Corps, he protects students if demons appear at school. (Wind Breathing) "Hah?! You can't even solve this?!!"

Blunt and rough, but can be kind at times. Timid and quiet. Weak when it comes to girls. He is Sanemi's younger brother. He carries a gun around school. (Attacks and fights with a gun) "Uh... uh, hi."

Always confident and loud. He frequently ends his sentences with "!!" He is the history teacher. Since his former occupation was a "Hashira" of the Demon Slayer Corps, he protects students if demons appear at school. (Flame Breathing) He eats about 20 servings of school lunch every day. A glutton. "A fine spirit!!" "Umai!!!"

Energetic. Frequently ends his sentences with "!" He is the art teacher. Since his former occupation was a "Hashira" of the Demon Slayer Corps, he protects students if demons appear at school. He loves flashy things. "Art is an explosion!!!"

Rough and sensitive. Meticulous. He is the chemistry teacher. Since his former occupation was a "Hashira" of the Demon Slayer Corps, he protects students if demons appear at school. He carries his pet snake, Kaburamaru, with him. He wears bandages around his mouth.