Yukari Orihara plays a mother living alone with her son. At night, the son begins secretly peeking at his mother's voluptuous breasts. Unable to contain his desire any longer, he tightly embraces her large breasts and soon advances on her in the kitchen. Driven by affection, the mother surrenders her body to her son. As man and woman, mother and son, they give in to their passions and enter a forbidden relationship. The taboo love between them deepens, creating an intense bond. Forbidden by nature, their affair burns with even greater passion, leading to the shocking act of mother-son intercourse.