Kaede and his son Shintaro have had a physical relationship for several years, knowing that they shouldn't. - However, recently, after Shigefumi got rid of Sarah and started working from home, she couldn't have sex and the two were hungry. - One day, Shigefumi went jogging. - Shintaro begs for sex without overlooking the gap. - Frightened by the thrill, from that day on, the two began to meet in a limited amount of time when their father was gone. More..