Rika Fujishita is exhausted by her sex life with her protein-focused, premature husband, and finds herself masturbating daily to satisfy her needs. One day, a man delivering dry cleaning accidentally catches her in the act, and despite herself, she takes on a provocatively seductive attitude. In that instant, she's overwhelmed by an intense pleasure unlike anything she's ever felt, and begins irresistibly luring man after man. Drawn to her massive, voluptuous breasts, men keep coming to her one after another. Her body is constantly damp with arousal, and her allure shows no signs of stopping.