A shy, bespectacled otaku girl with only one sexual partner decides to make her debut. This girl, who masturbates only with erotic manga and anime, turns out to be a wild, voluptuous woman when she takes off her clothes. It's true that the more demure a girl seems, the more erotic she is, and her pent-up fantasies build up to an explosive, almost excessive level of arousal. As she gets comfortable, she becomes a very cheerful and well-mannered girl.