Maiko, a mother, lives with her daughter and her husband, who was worried about her husband living alone. On the surface, their relationship was good and she didn't have any problems, but her frustration built up and she indulged in masturbation night after night. Then, her son-in-law, Hikaru, secretly peeks at her naughty behavior... When Maiko found out that he had a big dick, she couldn't control her overflowing lust, and she seduced him obscenely at every opportunity. Repeat