Hiroki (son), a ronin who was preparing to take his exams, was living a life of masturbation without studying. Yukie sees her son like that, can't hide her upset from her son's strong mara, and ends up helping her son who doesn't know her woman with masturbation with the intention of sex education. . Yukie ignores Hiroki's request that she want to stay until the end, but seeing her son's disappointment, Yukie reluctantly accepts. Hiroki, who can't stop her erection, tries to squeeze Yukie's pussy again, but he catches Yukie running away and forcibly commits him. From then on, Hiroki sought Yukie everywhere, and eventually a distorted parent-child love began to emerge...
