New York in 1960. The poor student Han Young-Min sees the want advertisement of the sperm bank and offers his sperm for 25 dollars. His sperm is given to two women, and they give birth to a girl and a boy respectively. When they are grown up, they love each other. Dr. No, who is responsible for the operation, comes to Korea in order to solve this problem. He persuades Han Young-Min, who becomes the vice president of a company, to meet the boy and girl. Consequently, he meets them, but he says that there is no relationship between them. Three persons separate from each other.