One Step (원스텝) 7 years old

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.

Credits

One Step Cast

Name	Character
Sandara Park She was 32, now 40 years old

One Step Crew

Name	Department