The love of a mother-in-law who lives with her daughter and her husband because of her husband's single assignment.Her daily life was calm, but she masturbated every day to fill the loneliness of her husband's absence.One day, Ai finds out that her son-in-law, Ichiro, is peeping, but...She is fascinated by his big penis, and she even wants to use it for herself.And as soon as she finds out that she is sexless with her daughter, she approaches him bewitchingly with her proud K cup and continues to seduce him day and night.