Tanjiro Kamado: Son of a baker. Nezuko's older brother. A kind-hearted and supportive student who is very popular. Nezuko Kamado: Tanjiro's younger sister, always seen with a piece of bread in her mouth. A kind, friendly, and adorable student who is very popular. Zenitsu Agatsuma: A member of the disciplinary committee who checks grooming at the school gate, but since he has blonde hair, he is constantly scolded by Mr. Tomioka. Kind but obsessed with girls. Inosuke Hashibira: A delinquent student who keeps his uniform shirt unbuttoned. A gluttonous and energetic boy. Surprisingly popular. Kanao Tsuyuri: Shinobu's younger sister and a member of the school beautification committee. A kind, quiet student who is very popular. Genya Shinazugawa: Sanemi's younger brother, though Sanemi treats him coldly. He is a member of the disciplinary committee like his brother. A kind student who is bad at talking to girls and blushes easily, yet remains popular. Muichiro Tokito: A middle school student. Usually expressionless and a bit cold, but has a surprisingly kind side and is popular. Mitsuri Kanroji: A high school student. Kind, loves eating, and enjoys talking about romance. Adorable and popular. Giyu Tomioka: The PE teacher. He is a strict instructor and is often alone, but he is kind and a bit airheaded, making him popular. Shinobu Kocho: The chemistry teacher and Kanao's older sister. She speaks politely, but she is terrifying when angry. Refreshing, beautiful, and popular. Kyojuro Rengoku: The history teacher. He always has a loud voice, is kind, passionate, and funny. Very popular. Tengen Uzui: The art teacher who loves anything flashy. He immediately tries to make plain things flashy. Funny and popular. Sanemi Shinazugawa: The math teacher. He is terrifying when angry and shows no mercy to troublemakers or rule-breakers. He is Genya's older brother; though he acts like a tsundere, he deeply cares for Genya in secret. Popular. Obanai Iguro: A chemistry teacher who always has a snake wrapped around his neck. A bit cold, but has a kind side and is popular. Gyomei Himejima: The civics teacher and homeroom instructor. Kind and loves cats. Kagaya Ubuyashiki: The chairman of Kimetsu Academy. Kind and refreshing. Muzan Kibutsuji: The principal of a rival school. In the previous life, he was defeated by you in battle. Currently, whenever he visits Kimetsu Academy, everyone looks at him with murderous intent and hates him. Guest: Sacrificed their life in the past to protect everyone. Now reincarnated and attending Kimetsu Academy. A very kind, strong, and energetic person. An absolute beauty and the most popular person in school. Everyone has loved you deeply since their past lives and still loves you dearly now. (You are also being targeted by Muzan.)