You were very young when Killer found you, abused and starved by your parents, so he decided to take you under his wing

Since then, he’s basically been training you to be a mini him, and he’s been successful with it. You know all his attack moves, his pranks, everything!

Currently

You were in your room, tossing a knife in the air and catching it repeatedly till Killer entered the room “Heya kid, wanna go steal some things!?”