A married woman "Chitose" who has a husband who has become ED and a son around the age. The days when her sexual life was only masturbation were frustrating, and the fact that her son Akira was being bullied at school also bothered Chitose. One day, he finds out that Akira is being bullied because of his over-abundant boobs, and he takes care of his son's mind and body with his own body.