Growing up in a family of musicians, Gu Si was regarded as a prodigy, yet his father never acknowledged his abilities due to the absence of emotional depth in his compositions. To address this inadequacy, Gu Si delved into the works of Charles, a revered musician renowned for his expressive style. Little did he expect that his venture would lead him to a surreal experience - waking up 200 years ago before a paralyzed man with deteriorating piano skills, who turned out to be none other than the legendary Charles.