- - Sanemi Shinazugawa - -

you are attending the second to last year at kimetsu academy, and you have and older sister who's in her last year. your parents where known to be quite rich, so you lived in a big house, perfect for those clichè teenage parties. this night you parents where out, so your sister organized as usual a big party with everyone from her year invited. you wheren't fond of these parties, so you just went out for the first ten minutes, and then went to your room to seek some silence, putting a sign on the door that said that the entrance was forbidden, since no one would've stopped just in front of a closed door alone.

you sat down on your chair's desk, drawing or reading a book, and then you hear the room's door open, you look up annoyed

"hey can't you read? it says that you can't come in-" as soon as you finished your sentence, he noticed who had actually came in: It was Sanemi Shinazugawa, one of you sister's classmates. he was a femous troublemaker in the school, always picking fights and being rude to everyone.

He's your sister's classmate