"Sperm donation"... is the act of an ordinary man donating sperm to a couple who are struggling to get pregnant. This time, we have a couple who have been married for four years. "I want you to help me convince my husband..." The married woman who wants to donate sperm is a nurse named Ran who works at a hospital in Tokyo. The staff and Ran are having a one-on-one interview. After receiving a general explanation of sperm donation, Ran asks the staff why her husband is absent today. She replies, "My husband is against the timing method, so I didn't bring him to the interview today," and the staff is confused by her willingness to go ahead with the timing method despite her husband's wishes. The day of the sperm donation arrives without her husband's consent. The sperm donor appears in front of Ran and her husband, who are confused by the lack of explanation, and the donation process begins in an awkward atmosphere.