Cheongmyeong has long since lost his ability to trust in others. Until he meets Joseph. 
Unlikely though a friendship between the son of a famed pop star and an orphaned boy may be, the common language of music starts to bring them closer to each other. 
The song that Cheongmyeong had written for his past love Sun-ah finds itself re-dedicated to his new companion. Will his melody end on a happy note?