Mr. and Mrs. Kazama have been married for several years but are not blessed with children. In proportion to the decline of her husband's crotch, night activities were decreasing day by day. One day, while enjoying a well-to-do meeting with Riri, the mother of the Koda family next door, the topic of a super-strong erection medicine that can't be obtained in Japan comes up. Yumi, who received a small amount from Lili, who had already purchased it, planned to try it tonight. However, she gave the son of the Koda family, Atsushi, an erection medicine, mistaking it for stomach medicine.
