Mayuki, the wife, feels somewhat uncomfortable as she becomes a guest at her husband's family home due to her husband's business failure. Meanwhile, her wealthy father-in-law, Toshiharu, despite his age, remains highly sexually driven and is infatuated with Mayuki's beauty, constantly pondering how to establish a relationship with her. Eventually, reaching his limit of restraint, Toshiharu schemes to make Mayuki unable to resist him and easily takes control of her. Having savored this, Toshiharu, from that day forward, thoroughly indulges in manipulating Mayuki's body...
