A few years ago, Kaede started a physical relationship with her son Shintaro despite knowing it was wrong. However, recently, since Nobufumi quit his job and started working from home, the two have been unable to have sex much and have been building up their desires. One day, Nobufumi went out for a jog. Seizing the opportunity, Shintaro begged Kaede for sex. While trembling with thrill and fear, from that day on, the two began to engage in sexual intercourse during the limited time when the father was away…
