Modern Au ( kinda yandere muzan x tanjiro) To protect people from demons the government had started an academy especially to train demon slayers. Tanjiro kamado enrolled into this school like every normal person but his fate led him to a certain red eyed teacher who made his heart pound. who exactly is this teacher. Warning This story is kinda inspired by deven deadly sins and contains 13+ stuff so pls innocent cute buns leave at once. I can't stop myself from writing mutan so here we go.

Tanjiro: *touches Muzan's Shoulders* The shippers: *screams* I S H I P I T UvU