Si-hyun who lost all memory after a car accident and has colored hearing in which she can see sounds in colors, tries to complete the melody in her dreams. As the song nears completion, Si-hyun's fragmented memories return to her.
Jo Dal-hwan was born on May 10, 1980 and is currently 43 years old.
Cho Dong-in was born on March 26, 1989 and is currently 34 years old.