The Last Melody

When the last melody plays, what will happen to their love?

Son Naeun: a very cheerful girl who always tries hard to keep people she loves smiling, once fell in love with a boy named Lee Taemin at the tender age of 15. For her, she thought it was her first love until they got engaged four years later. From that time on she begins to see his real side. She wants to leave him but due to the promise they made, she can't. That is until she meets someone who changes her whole life once and for all. Someone with a very cold aura around him, never smiles, never shows his vulnerable side, got into trouble several times and has a painful past. Someone by the name Kim Myungsoo.