Kenichi and his wife, Maiko, who are in their third year of marriage, bought an apartment and lived a happy life. At that time, Maiko's sister Tomoe stays in their apartment to find a room to live alone. Unlike his wife, Kenichi is not only plump with huge breasts, but also dressed in a highly exposed and defenseless fashion, which makes it difficult to see. Tomoe unleashes a sensual pheromone and invites him to forbidden pleasures to enjoy his troubled appearance ...
