Reiko, who lost her husband and raised her son Ichiro alone. Of course, it was a daily life of frustration, but one day she discovered a mature woman's video from her son's room. Reiko learned that her son was excited about women of her own age and began to feel an indescribable emotion towards her son. And by witnessing her son's masturbation and morning erections, Reiko's desires reached their limit...
