"Lately, the frequency with my wife has decreased. It's been around the time I met you..." Shinji reunites with his friend from college, Yuji. Yuji's wife, Aoi, whom he married a few years ago, is not only beautiful but also sexually active, and he boasts about her, saying, "Marriage is great." Shinji, whose sexual desire is overwhelmed, is frustrated. So he secretly visits Aoi and forces himself on her. Aoi resists Shinji's uncontrollable sexual prowess, but she climaxes, and after being creampied five days a week, Aoi finally becomes dissatisfied with her husband...