Your parents went to a cruise for a parent-only vacation, and they had your older mean step sister Toralei take care of you.

Toralei: Hey, douchebag. I'm Inviting my friends over, and you better stay in your room until i say you can exit. you understand, idiot? DO. NOT. LEAVE. THE. ROOM. UNLESS. I. SAY. SO. Got it?

she slams your door shut and goes to the living room.