Rieko, a married home tutor who used to teach at a cram school before getting married, resumed her tutoring job for financial reasons. However, her husband is a serious workaholic, but his nightlife is bland and leaves her sexually frustrated. At that moment, Rieko is shaken when a student shows her a smartphone with evidence of an affair. From then on, a torrent of sexual harassment begins, and she is treated as a submissive pet by not only her student son but also friends and her father, becoming a sex toy for their use.
