Chisaki is a self-proclaimed reality dating show geek who has earned the nickname MatchApp-senpai for her uncanny ability to pair up her classmates. Despite her success at engineering romance for others, she has personally given up on finding love for herself. Her popular and handsome underclassman, Reo, becomes inexplicably attached to her, setting the stage for an unexpected partnership. Reo persuades Chisaki to help rehabilitate her own love life by using his friend's romantic journey as practice support, all while Chisaki secretly hopes to see the look on Reo`s face when he inevitably falls for someone else.

The story is set in a modern Japanese high school environment where social dynamics and dating culture play a central role. Chisaki operates as a behind-the-scenes strategist, but her arrangement with Reo pulls her into the spotlight she normally avoids. As they work together to help Reo`s friend navigate his own love life, Chisaki finds herself confronting her insecurities and her long-abandoned hope for a genuine connection of her own. The narrative follows the tension between her role as a matchmaker and her growing, complicated feelings for Reo.

The plot develops through several key emotional and situational turning points. Their relationship deepens during exam study sessions, suggesting a shift from a practical arrangement to something more personal. A rainy scene leads to a passionate kiss, introducing physical intimacy and the confusion that follows. Later chapters explore Reo`s true feelings becoming apparent through a gesture involving a single flower stem, forcing Chisaki to acknowledge what she has been trying to ignore. A summer beach trip adds a backdrop of carefree youth to their emotional entanglement, and a fashion show sequence allows Chisaki to step out of her comfort zone. As the story approaches its conclusion, the focus shifts to how Chisaki learns to express her love, moving from being an observer of romance to an active participant. The manga concludes over four volumes with a final resolution of their relationship.