When her husband's business trip is extended, Rinko is frustrated and tormented. At that time, her son brings his friend Kosuke over. Seeing his desperate appearance as he secretly peeks at her body, Rinko feels Kokoro and can't resist and seduces him... She continues to be violated by Kosuke's youthful, inexhaustible cock, no matter how many times they do it, and before she knows it, it's morning. Since then, as he continues to come over every day and desire her, she is exhausted both physically and mentally from the inexhaustible sex, and finally...