Koichi, a son-in-law living with his wife and her parents. He is interfered with by his father-in-law, who asks, "What's going on with making babies?!" to the childless couple. Koichi answers that he has no libido, but the real reason was that he was captivated by his mother-in-law, Yumi's, overly lewd huge breasts! Koichi's desire for Yumi reaches its limit, and he attacks her exposed huge breasts while she's bathing! Koichi's courtship, which has lost all reason, escalates, and Yumi, who was also at a loss with her mature body, becomes addicted to adultery within the family...
Glory Quest
