JYMA-093 Witnessed in the act of adultery, the masochistic beautiful mature woman with big breasts becomes a private tutor and teacher, Reiko Kobayakawa, who becomes a sex toy for the scum of her parents.

Reiko is a married private tutor who used to teach at a cram school before getting married. She quit her job after getting married, but now she has started working as a private tutor again to make ends meet. However, while her husband is a hard worker, their sex life is lackluster and she is left feeling unsatisfied. One day, Reiko is shocked when one of her students shows her a smartphone containing footage of him having an affair. From then on, she is subjected to a barrage of sexual harassment, and she is treated as a submissive masochistic pet and sex toy not only by her son, but also by his friends and father.