Best Hits: Aunt Nashie Takeuchi, a relative who secretly seduces me.

Kyosuke, a son who lives together with his father Kunio. His mother was separated because of an affair by Kunio. My mother's younger sister, Narie, came to help with household chores because she was worried about her father and son living in two men. Kyosuke is attached to Narie, who does housework in a defenseless manner. Narie smiles as she notices such a hot gaze. That night, Keisuke learned the fact of the shock. Kunio's cheating partner was Narie. And Keisuke, who secretly peeks into the affair, accidentally meets up with Narie, who swings hard.