This is a story about a piano, pitifully abandoned in the woods, and a young boy, Kai, who grew up playing it as his favorite toy. With the first round of the International Chopin Piano Competition now completed, the number of contestants has been more than halved from 80 to just 30. However, the results are far from what anyone expected, and as a result, the fates of Kai and Shuhei begin to diverge in ways neither of them could have imagined.