Kazushi Kubota, a 19-year-old college student, unexpectedly encounters his junior high school first love, Masana Fujisaki, at a club. Now a medical student balancing modeling work and recently single after a long-term relationship, Fujisaki represents a renewed romantic opportunity for Kubota. The narrative tracks his determined efforts to reconnect with her following their reunion. His background includes shared junior high school history with Fujisaki, though his family, academic pursuits, and broader personal history lack specific elaboration. Kubota's actions stem entirely from reigniting this past romance during his early adulthood transition, with the story confined to this focused pursuit.