Freeter Shintaro begins an affair with married woman Hitomi. What started as a casual fling gradually turns serious as he falls for her deeply alluring eyes. In truth, Hitomi's infidelity is permitted by her husband—who is a cuckold fetishist who enjoys being replaced. Sensing Shintaro's genuine feelings, Hitomi suddenly forces him to watch her intense sex with her husband. As Shintaro stands frozen in shock, Hitomi stares directly at his face the entire time. "Seeing a man look so heartbroken turns me on so much..."