Yui lives with her husband and father-in-law, and she is not dissatisfied with the life itself, but one day, her husband leaves her and says, ``The doctor told me I don't have any seeds.'' The wife, who wants to have a child, cannot hide her shock. As a result of the discussion between the two of them, she came to a conclusion that would be unthinkable using common sense. It was about her father-in-law and her wife having sex and having a child. Although his father-in-law is confused, he becomes aware of his beautiful and stylish wife as a woman, and becomes excited and embraces her. However, two of his father-in-law's friends, who were watching the act, asked him, ``Please let us help you have a baby.''