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…
Shu will be performing at a recital hosted by Cliff, where he'll play among other prolific pianists, and the audience will expect from him a performance to represent the "next generation" of musicians. However, Shu still struggles to catch up to Akari's skill, and he has no choice but to start playing with his right and left hands in disharmony. Shu will have to improve quickly if he wants to make the show a success. Will he see the light before he finishes the performance?