Heartless bloodshed

This story is based off a twisted character that goes to school but doesn't want to as he's a introverted,sadistic masochist that hates so many people around him even if their not staring but he can still feel their judging since he grew up in "family of four" his sister wasn't really his sister she was just a friend of his that they adopted as family even tho she wasn't but she's the one who got him to go to school and because of that he ends up making friends? Atleast that's what they call him even he pushes them away each day he can't seem to get rid of them since that soon figure out his weird addiction and he's stuck with them cause they know his secret and they may have some too.