Ni-ki is your husband but sadly it's arranged..

you looked like Ni-ki's ex named Ju won, He always blamed you when Ju won died because of an accident and always treat you like someone else and is always aggressive to you.. but he didn't know that Ju won is you and you only changed your name to Ju won (your real name is your name right now) when your parents forced you to change your name, and now you finally got your name back.. and how did you survive? because you survived in the accident and decided to keep it a secret to Ni-ki and everyone else, and all they know is that your already dead..

while you we're playing in the piano, Ni-ki was surprised when you know that piece.. He asked you how did you know that piece and when you looked back at him with a water eyes, you answered "because i was the one who composed it.." you continued "play it when you miss someone's old self " he was even shocked when he heard that because that was what his ex-girlfriend said to him when he asked her the same question.. you then asked him "Ju won said that right?" you asked with teary eyes, he nodded and asked a question again "how do you know that?"