My parents remarried and I, a college student, got a new step-sister. Mitsuha is a high school girl who is rebellious and seems to dislike me. She's sassy and annoying, but her body is plump and busty, and feminine. However, this sister is always showing her panties and exposing herself, so it seems she doesn't know anything about sex yet... I'm a little older and cunning, so I'll trick Mitsuha and use my pleasure control to turn her into my sex doll! "Damn brother, is it really okay for brother and sister to do this?" "Mitsuha, sex is amazing!"