OBA-257 My relative Aunt Rie secretly seduces me, Rie Takeuchi

Kyosuke lives with his father, Kunio. His mother has decided to separate from him due to Kunio's infidelity. Worried about living with just the two of them, his mother's younger sister, Rie, comes to help with the housework. Kyosuke is transfixed by Rie, who is defenseless as she does the housework. Noticing his passionate gaze, Rie smiles. That night, Kyosuke learns a shocking truth: Kunio's lover is Rie. Kyosuke, secretly peeking into the affair, accidentally makes eye contact with Rie, who is shaking her hips violently...