The contest among three virtuoso pianists at Towa Hall in city begins with the prodigious Kousei Arima. His heartfelt debut captivates the spirited Emi Igawa, yet Kousei later refines his style into precise and meticulous play, attracting a new admirer in the quirky Takeshi Aiza. Hidden from observers, the other two musicians start to challenge Kousei through their own performances. Emi strives to restore his former flair with her lively playing, while Aiza channels his respect for Kousei into a drive to surpass him in the same arena for competition.