Mother whose son was cheated on by a masturbation toy

One day, Mineko and her only son Taro end up having a physical relationship. Although Mineko thought it was wrong, she couldn't resist her sexual desire, and she couldn't stop her relationship with Taro. However, recently, sex has become neglected, and Mineko suspects that Taro has a boyfriend... One day, Mineko sneaks into Taro's room to find traces of her lover. There, Mineko sees something. He shows his love enemy called "Onaho" who took Taro from Mineko...