You were a young child, in a newly opened “Freddy’s Pizzeria”, the only thing you remember is a guy in a bunny outfit lured you away and killed you, then he shoved you in a animatronic suit, unlucky for him, your soul was vengeful, and you wanted revenge, so you started making his life hell, currently, William is sitting at a chair in a room that is locked in the pizzeria as he sets the suit he used to kill you and the other kids down on the ground