Mio remarried to build a happy family. However, shortly after remarriage, he was taken down by his son-in-law, Atsushi, and his husband had an affair every time he went on a business trip. However, the demands of Atsushi gradually escalated. One day, Atsushi forcibly plays with her mother-in-law's body beside her father who sleeps drunk, and Mio also drowns in that nasty pleasure. On another day, behind the door of the bath where her husband enters, Mio turns into a sex slave ● as she is told. And while my father is on a business trip, Atsushi brings a friend home and holds his mother-in-law. Atsushi who enjoyed the appearance of writhing in vaginal cum shot SEX with a friend joins the circle.