Reiko, a single mother who raised her daughter Sanae alone after her husband passed away when she was young, is overjoyed that her daughter has found a boyfriend. Sanae's boyfriend is the second-generation owner of a liquor store, a kind and easygoing young man. Reiko is thrilled that he's dating her daughter.
However, the young man has a secret... He's unbelievably well-endowed and possesses a powerful cock. One day, Reiko accidentally catches a glimpse of his erect penis. "To be attracted to my daughter's boyfriend's cock..." Reiko desperately tries to maintain her composure. But her instincts overwhelm her reason... What decision does Reiko make when she can no longer hold back?
