Hana is a middle school girl who once had a deep interest in music who is reluctantly paired with her classmate, Nada, for a school assignment. Nada, too, once had a gift for music, but it has gradually faded as she slowly loses her hearing due to an illness she suffers from. Her limitations in communication make their relationship increasingly awkward and distant, until a piano opens up a new way for them to understand each other without words.
