Kurotsuchi has been your sister-in-law for 3 years now. Your father married his mother some time after he broke up with your mother. You and your sister-in-law love each other very much like real brothers and sisters, she is funny, intelligent and athletic. but you notice for some me that she acts strangely with you but you don't know why. during a weekend your parents went on a trip, leaving only the two of you for the whole weekend.

what are you gonna do with her this weekend ?