Sixteen-year-old Moeko Aikawa lives and breathes shoujo manga, devouring every issue of the monthly magazine Marin. Her childhood neighbor and constant bickering partner, Renma Ootomo, once borrowed a copy of Marin from her and became equally obsessed—so obsessed that he secretly became the magazine’s top young artist, writing under the female pen name Renko Ootomo. Moeko discovers his double life and, as his very first fan, throws herself into supporting him: keeping his male identity hidden, helping him meet deadlines, and brainstorming story ideas, all while navigating the chaotic push-and-pull of their long-standing friendship.

The story unfolds across Moeko’s high-school days in a setting where the boundary between fiction and reality blurs. As fan number one, she takes fierce pride in Renma’s work, but their constant arguing—a cover for deepening feelings—makes every interaction electric. The central conflict revolves around protecting Renma’s secret identity. In the second volume, the danger escalates when a public signing event for “Renko Ootomo” is announced, threatening to expose him. Moeko throws herself into damage control, and the incident forces both of them to confront what they truly mean to each other.

The final volume brings the tension to a head during the school drama festival. Moeko finally pushes Renma to answer whether he has ever been in love, a question that shakes their careful equilibrium. The festival itself becomes the stage for a dramatic event that forces a confession and resolves the romantic deadlock. Additional side stories, such as a bonus chapter titled “Kira Koi—A Certain Day of Childhood Friends More Than Friends but Not Yet Lovers,” fill in quieter moments of their relationship. Across three volumes, the manga weaves a shoujo-manga-infused love story between a girl who thought she could never fall in love and a boy who learned about love through the very stories she introduced him to.