Yoichi is in love with his wife, Yuko, but he hasn't been feeling well lately. Worried that Yuko will run out of affection for her if things continue like this, Yoichi secretly buys an aphrodisiac. However, while Yoichi is away, Yuko and her son Kota drink a drink containing an aphrodisiac. Yuko, whose body heats up and her uterus begins to tingle, and Kota, who has an erection, gradually lose their sense of reason and begin to desire each other violently and become physical. Two drowned in pleasure