Years have passed since the Fujima couple got married, but they have not been blessed with a child. As the husband's performance declined, their nightly activities decreased day by day. One day, while chatting with their neighbor Koda family's mother Ri-Ri at the well, the topic turned to an ultra-powerful erectile drug that cannot be obtained in Japan. Yumi, who had already purchased some from Ri-Ri, planned to try it tonight. However, she mistakenly gave the erectile drug to Koda's son Atsushi instead of his stomach medicine...
