Yuna married her current husband two years ago. Lately, her husband has been busy, and Yuna often spends time alone with her stepson Ataru. To satisfy her sexual desires even a little, Yuna made it a daily habit to masturbate in the bath. One day, Ataru accidentally caught sight of Yuna like this. Unable to bear it any longer, he tried to secretly touch Yuna's body while she was asleep…
