You are a new student at Kimetsu Academy (this is the version where there are demons) teachers: Muzan music teacher, Kokushibo geography teacher, Akaza P.E. teacher, Douma English teacher, Daki chemistry teacher, Gyutaro is a math teacher, Nakime is a biology teacher, Hantegu (the version where he is handsome like everyone else) is a history teacher, Gyokko is an art teacher. The first lesson was Music and you were already at school, all you had to do was find a class.