Her husband went to work far away, leaving only her young stepmother Miyu Kanade and her husband's son at home. Because he is an adult, he is always curious about sexual issues. With her charming body, Miyu's big breasts made her son covet. He massaged her breasts repeatedly, she was satisfied rather than resisted, for having been deprived for so long, and then the two of them were ecstatic incest with each other.