The story follows a student named Sugihara Natsuki, who joins an otaku club and meets the only female member, Mizushiro Kaoruko, who is a typical otaku girl that wears lolita clothes and doesn't use makeup. Natsuki and Kaoruko become close and eventually start a romantic relationship, but Kaoruko's status as a "taken" girl leads her to become arrogant and cause conflicts with other girls in their school. In order to feel valued again, Kaoruko decides to become the "princess" of the otaku club, which causes Natsuki to feel excluded and unsure of their relationship.