Miho, a married woman tutor who used to be a cram school instructor before getting married. She started tutoring again for the sake of the household budget after quitting after getting married. However, her husband is a serious workaholic, but her nighttime life is bland and frustrating. At such a time, Miho is shaken when she is shown a smartphone with a picture of an affair scene by a student she is in charge of. From then on, a torrent of sexual harassment coercion begins, and she is treated as a masochistic pet by not only her student son but also her friends and father, and falls into a sex disposal toy.
