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.
as Shi-hyun
as Ji-il
as Woo-hyeok
as Ji-won
as Jong-hwan
as Woo-hyeok's Band Drum
as Young Shi-hyun
as Record Label Representative
