Manabu quit his job and returned to his hometown. However, he was spending his days wandering around his friend's house without any particular purpose. There, he reunites with his friend's mother, Yumi, whom he has long admired... Manabu, who has had a crush on her Yumi for a long time, can't control her sexual desire, and pushes her down, saying, "If you want to be a woman of my color...". Yumi's body is gradually transformed into her obedient female after realizing that she is a woman and not her mother.