Nonoka is a flight attendant, and her husband is Captain Shinichi. After getting married, Nonoka decided to quit her job to become a homemaker and take care of her husband. Although both of them want to have children, due to Shinichi's erectile dysfunction disorder, the chance of having intercourse or conceiving a baby is nonexistent. Her mundane life passes by day by day. One day, she is sexually assaulted by one of her close students. Nonoka immediately calls Shinichi, but he hangs up before she can tell him. Feeling lonely and in pain, Nonoka seeks comfort at the coffee shop she often visits. Hiromu listens to Nonoka's story, gently embraces her, providing her with a warm and safe feeling in her moment of weakness. Therefore, Nonoka willingly offers her body to Hiromu, hoping he can soothe her broken heart. From then on, they continuously meet whenever Shinichi is at work. Each time, Nonoka lets Hiromu ejaculate deep inside her body. Today, the weather suddenly turns bad, and Shinichi's schedule is postponed to another day. While buying a cake to bring home to his wife, he catches her letting another man ejaculate inside her vagina in their bathroom! However, instead of getting angry, Shinichi discovers his own perverse preference - he enjoys watching his wife being intimate with another man! Watching someone else ejaculate into the vagina of his beloved wife makes his penis hard for the first time in a long while! But he knows it's not good for her to be intimate with a stranger, so he calls his close friend Keisuke to come over for dinner. After a satisfying meal, Shinichi proposes a threesome to Nonoka. Initially, Nonoka refuses, but seeing how much her husband enjoys it, she feels extremely aroused and excited, so she becomes more proactive. Some time later, Nonoka becomes pregnant, and both husband and wife are very happy, but deep down, they both do not know who the father of the baby is... Bonus scene includes behind-the-scenes and giving a blowjob to the assistant director.