A tranquil tale about two boys from very different upbringings. On one hand you have Kai, born as the son of a prostitute, who's been playing the abandoned piano in the forest near his home ever since he was young. And on the other you have Syuhei, practically breast-fed by the piano as the son of a family of prestigious pianists. Yet it is their common bond with the piano that eventually intertwines their paths in life.

Soma Saitoas Kai Ichinose (voice)
Natsuki Hanaeas Shuhei Amamiya (voice)
Junichi Suwabeas Sosuke Ajino (voice)
Yuichi Nakamuraas Wei Pang (voice)
KENNas Lech Szymanowski (voice)
Mariya Iseas Sophie Ormesson (voice)
Katsuyuki Konishias Karol Adamski (voice)
Toshiyuki Toyonagaas Kosei Hirata (voice)
Ryoko Shiraishias Kai Ichinose as an Elementary School Boy (voice)
Aoi Yuukias Takako Maruyama (voice)
Mika Abe
Harumi Fuuki
Frédéric Chopin
Wolfgang Amadeus Mozart
Sergey Rachmaninoff
Ludwig van Beethoven
Franz Liszt
Antonín Dvořák
Johann Sebastian Bach