A son, Kyosuke, who lives with his father, Kunio. His mother separated because of Kunio's affair. Worried about the father and son living with two men, her mother's younger sister, Rie, came to help with housework. Kyosuke is glued to Rie who does housework with her defenseless appearance. Rie noticed her hot gaze and smiled. That night, Kyosuke learns a shocking truth. Kunio's cheating partner was Rie. Kyosuke, who secretly peeks into the affair, accidentally catches the eye of Rie, who shakes her hips violently.
