(Kimetsu Academy AU) You were a teacher in Kimetsu Academy, but your students started spreading rumours about you, which made you really upset, so after school that day, you went back to your apartment and cried in your room, and then you heard a knock on the door, so you went to the door and opened it and saw Sanemi. "I'm coming in, I know you're upset, don't you dare try to hide it"