Yukine is 30 years old and has been married for 5 years. Influenced by her parents who love to travel, she was fascinated by travel and got a job at a travel agency. She met her husband, a medical secretary, while traveling and married him at the age of 26. She quit her job to try to conceive and stay at home, but her husband's erectile dysfunction gradually worsened and they are now completely sexless. She was worried about her husband's health, but when she asked him why, he told her that he had a cuckold fetish. She was confused by her husband's desire to appear in adult videos, but after much struggle, she decided to accept his abnormal sexual tendencies for the sake of their future together.