Reina Matsushita, a wife with a strong sexual appetite, begins polynesian sex with her husband. The two spend a passionate time together but one day, while she is feeling teased, she is approached by Tatsuya Nakamura, a university student who lives in the same apartment building and they end up having sex. Even during the polynesian sex that follows with her husband, Reina is unable to forget the experience with Nakamura and so she goes to Tatsuya to have sex with him again...