Koichi, a newlywed, accompanied his wife and returned to his parents' house where his mother and brother and wife lived for the first time in a while. However, my brother and my wife have a physical relationship with each other. Koichi, who was furious at his wife's cuckolding, left himself in retaliation and surpassed his brother's wife, Hisaki. The happy family collapsed and became a carnal hell, and the days of the act continue.
