An unpopular NEET turtle who only thinks about her buttocks. Her childhood friend, black gal Ranka, is extremely lonely, and she comes to Kame's house almost every day to relax and kill her time as if it were her own home. Kame didn't see Ranka as a member of the opposite sex, but she involuntarily got an erection in Ranka's buttocks, and Ranka saw her secretly jerking off. Kame can't stand it and buries his face in her Ranka's buttocks and ends up having sex with her childhood friend.
