Ken-ta's mother's friend Michiru came to stay at his house. Ken-ta, who had just learned how to masturbate, couldn't hide his excitement over Michiru's alluring body. Finding Michiru's underwear, he used it as material for his self-pleasure but that wasn't enough. He started touching her large breasts and became dependent on it. His desires escalated further! Craving her voluptuous body, Ken-ta decided to sneak into her room at night…
