The storyline was okay but it had problems. I don't believe that there was chemistry with the main leads. The part that Park Hae Jin played was perfect for him. I don't think the love interest character Kim Min Jung played was right for her. Park Hae Jin was awesome in this. I loved how he moved around, above, and below this character. I wished there were more martial art scenes but I will deal with what the story had. There was only one song that I liked. I don't know what I just saw but the ending disappeared like Ghost Agent K.