Raised in a conservative household, Akane Kazoe lacks sexual awareness despite her academic excellence. In contrast, Suguru Hanazono grows up in a sex shop, groomed by his parents in all things erotic. Akane, seeking to broaden her horizons, enlists Suguru's help to navigate the realm of sexuality, embarking on a journey of learning starting with the basics of male anatomy. Under Suguru's tutelage, Akane gradually delves into the intricacies of sexual education.