Her husband was a senior at the same university, and Rika fell in love with her at first sight, which led to their relationship and marriage. Apparently they had sex almost every day while they lived together before getting married, and it continued for a while after they got married. However, over the past six months, the frequency has decreased, and now it only happens on weekends. She thought that her husband was tired from work, but she noticed something strange about him. My husband and I used to go out together on holidays, but lately I've been going out alone more often, saying I'm going fishing with a colleague. One day, when she saw her husband at the nearest station, she witnessed a surprising sight...