A high school senior trying to get through everyday life keeps unexpectedly crossing paths with an idol from the entertainment world near HYBE headquarters. At first, every encounter feels like a coincidence—late-night convenience store visits, waiting for friends after school, quiet streets near practice buildings—but over time, it starts to feel intentional. The idol, Seonghyeon, becomes convinced she is a sasaeng fan stalking him, while she is equally frustrated by his arrogant and self-centered assumptions. Neither knows anything about the other at first, and their misunderstandings quickly turn into repeated clashes. As their worlds continue to overlap, they get pulled into the chaotic dynamic of his group—each member reacting differently to her presence: the unpredictable oldest, James; the observant Martin; the straightforward Juhoon; the energetic Keonho; and Seonghyeon, who struggles most with letting go of his first impression. What starts as irritation and mistrust slowly turns into something more complicated as coincidence stops feeling like coincidence at all.