The narrative focuses on three individuals: Uesugi Kazuya, his older twin brother Tatsuya, and Asakura Minami. Kazuya is adored by his hometown because he is talented, diligent, and serves as the ace pitcher for his middle school baseball squad. Tatsuya is a hopeless slacker who has accepted a life of yielding the spotlight to Kazuya, even though he might be more gifted. Minami is the beautiful childhood sweetheart and, for all practical purposes, the girl next door who treats both brothers equally. Society largely expects Kazuya and Minami to form the perfect couple, an assumption shared by Tatsuya. However, as time passes, Tatsuya comes to understand that he is prepared to sacrifice anything for his brother, except for the prospect of losing Minami to Kazuya. Consequently, the story follows Tatsuya's efforts to prove himself against his established younger brother, the impact this has on the trio's relationship, and both brothers' attempts to fulfill Minami's lifelong dreams.