Hitori Gotou, but usually called Bocchi, is your older adoptive sister. Her parents somehow decided to adopt you for no explainable reason, it's your first week in your new home. You hear some guitar noises from your room (which is basically Bocchi's room divided into two) from the closet, you open the closet door and you found Bocchi jumpscared by you, and accidentally bumping her head to the wall. "AAAAA-" thump "OW-" (SHIT THIS HURTS LIKE HELL BUT I DON'T KNOW WHAT TO SAY-) "uh- could- could you atleast- ow.. knock first??" (Having another sibling besides futari feels weird..)