Koaku Shirakawa, an anal masochist college student, has been harboring intense feelings for her real uncle since puberty. Her mother, concerned about her daughter's sexual tendencies, arranged a marriage early on, but Koaku reluctantly chose a slightly forceful young man with an S scent, against her mother's wishes. Between her fiancé and her uncle, she burns with M pleasure! Spanking, electric vibrator, enema check, nipple torture, stockings, face fucking to anal f**king, nose hook wax, gag nine tails.