I like Joo Won as an actor and yes he did a very good job here. But still, in this drama, Joo Won was under the shadow. Under the shadow of a man called PARK KI WOONG!! Absolutely magnificent, no words to describe how good he portrayed his character. Just no words. He really deserves a main role after this but sadly, I heard that he'll join the army in the autumn. Fangirls, don't hate me for saying this but as much as I like Joo Won, Park Ki Woong had him in his pocket. And comparing Ki Woong to the other actors/actresses, he made them look like ragbag even though all the cast pulled of a good performance. The weak link in this drama was sadly Jin Se Yun, I just think that it was too early for her to get a main role with actors like Joo Won and Park Ki Woong. Apart from that, I still think that she made a good job, but not more than that. PKW and Jo Won are the ones who made this drama GREAT... The story was great too but I felt it dragged a bit in the second half because the writer only foucsed on one thing which took a long time for Kang To to solve(revenge) the problem. But otherwise it was great, solid, interesting that kept my ass stuck on the sit. The music was great and even made the touching scenes sadder. Exellent! Overall this was an outstanding drama with a really interesting plot that will keep you on the edge of your sit every time and will hook you from episode one and holds your attention into the last one. So, for me, this a must watch. It has great story with great combination between a touching storyline and a revenge one. Watch it if you haven't. Highly recommend it!