Shu’s had a rough start to life, and doesn’t think he has much of a future—until fate brings him together with talented young pianist and fellow student Akari Yuzuki, the “left-handed angel,” for one high-flying adventure. But when tragedy cuts their relationship short, Shu realizes he must find a way to live for them both…and realizes that something is no longer quite right with his own left hand…
In order to restore Akari's father Mikage's faith in himself, Shu becomes the student of Mikage's old rival—Greg the Hammer! As he and Akari struggle to develop as pianists, they become all too aware of the pressing time limit… But if he wants to develop his own sound—and to help the adults around him—Shu must turn towards the stage of competition once more!