Mihō, a married home tutor who used to teach at a cram school before getting married, resumed her tutoring job for financial reasons. However, while her husband is serious about his work, their nightlife is bland and leaves her sexually frustrated. At such a time, Mino is shown a smartphone by the student she's in charge of, which contains photos of an affair scene. From then on, a torrent of sexual harassment and coercion begins, and it's not just her son who is a student but also friends and her father who treat her as a submissive pet for sex.
