A pianist, who has already lost his real audience, is searching for human via performing music in a world controlled by A.I. However, his only audience is a deaf and dumb cyborg girl, who is raised by machine and has no actual experience with real human. Can they identify each other's feeling by the signals of performing music? While Artificial Intelligence rises, how can the last generation of Homo sapiens and Posthuman face their fates of desolation?