Mayu is a pretty girl who has just become an adult. One day she meets Kunio whom she has known for a lenghty period of time and whose heart she tries to catch. So they have sex. Slowly Mayu is beginning to experience her very own horniness and as such can really enjoy this new affair. But what she does not know is that Kunio is a horny sex monster who happens to take recordings and pictures of his girlfriends when they have sex together. Then Mayu’s life is going down the brink ever since meeting Kunio... but she appears to be enjoying it...