A while after marrying her husband, an ordinary businessman, her father-in-law, who lives with her, becomes ill, and the wife, a full-time housewife with no children, is tasked with caring for him. Her husband is a workaholic, and she is not given any attention in her married life, which makes her stressed and frustrated to the point of exploding. One day, while taking care of her father-in-law's private parts, she begins to crave his cock, and they have a relationship. However, there is no way that the father-in-law can satisfy his young wife's body, and the masochistic wife is made to climax many times by the doctors who are asked by her father-in-law, crying out in ecstasy.