To achieve remarriage, mother Miho shapes up her body with tai chi. However, her supple movements and the allure of her performance outfit were nothing but obstacles for her son Koji, who is studying for medical school entrance exams... 'Damn it, I can't concentrate because of Mom's figure...!' 」As his arousal became uncontrollable, Kyoichi finally pounced on Miho. Then during their first time having sex, he realized, 'I should study the human body with Mom's body!' Miho gradually succumbs to her son's frenzied pleasure. In search of the secrets of human structure and pleasure, a human development sex experiment began with Unho as the subject! #ClassLeaderP
