Mai moved into a second-hand apartment after getting married. She was living a happy life, but she was not satisfied with her sex life. There was a man peeking into the couple's bedroom. It was her neighbor, Kaneko. When Kaneko learned that Mai was not satisfied, he lied to lure her to his home, pushed her down, and carefully licked her entire body, starting from her toes. Experiencing erogenous zones and pleasure for the first time, Mai swore to herself that she shouldn't, but she found herself drowning in Kaneko's caresses...