She and her older husband tried hard every day to have a baby, but they just couldn't get it. Even though her husband was expecting it, his subordinate Matsuyama came to celebrate her pregnancy in a hasty decision. He was a young man with a strong sperm. The man said he wanted lots of children after marriage, so the wife asked him if he could give her his sperm. "I want to show my beloved husband what it's like to have a baby. Can you help me?" Is this an affair? She secretly starts having a surrogate baby with her husband's subordinate without her husband's knowledge.