Risa's husband has two fathers: his biological father Edo-ji and his adoptive father Yama-ji. One day, Risa visits her in-laws' home, but upon arrival, she finds that Yama-ji is unwell and asks her for care. However, this was just an excuse to harass Risa… Upon learning the truth, the jealous Edo-ji also approaches Risa's body, leaving Risa overwhelmed by the task of caring for the selfish old men's lower halves…
