Belonging to the lowest social tier in class, the protagonist is an unnoticed, introverted otaku often ignored in daily life. Though mocked as a socially awkward nerd, he takes pride in his unmatched knowledge of anime, manga, and especially adult doujinshi. One day, while secretly reading a new release at school, he's caught by the most popular girls. Panicking, he tries to flee, but they stop him—inviting themselves over to see more of his collection at home. Never having had girls visit before, he nervously agrees. Soon, three beautiful schoolgirls arrive at his house. As fantasy and reality blur, an intense, heart-pounding encounter begins.