The story of two people, one changeable and the other strange.
One is unpredictable and the other is elusive.
Due to an accident, Fei, who had always loved music, could no longer touch the piano.
Because of his commitment, Del, who has always been cold-hearted, won the dream of millions of pianists with his notes.
This is a story of protection and struggle, the commitment of two people and the protection of one person.