Yuu is a mother who can't help but adore her son. Even as he grows up, her doting continues, and as her son hits pubhood, he starts to treat her lightly. One day, while trying desperately to get his attention, she finds out that her son has made a reservation at a boob pub. She can't bear the thought of her beloved son being taken by another woman. Driven mad by jealousy, Yuu takes action and starts working as a prostitute exclusively for her son...