Don't hate me. Yea so the "Friday the 13th" series is my absolute favourite of the slasher movies. So,we all know about Jason's story and whatnot so I'm gonna help him and give him a sister that's just like him though she's not deformed Kristal has heterochromia and kids at camp made fun of her for it and she drowned trying to save her brother. So now Kristal and Jason work as a team slaughtering teens and ki.lling for mommy