The storyline for this drama is good. Okay, I'll get right to the point. I did not like the characters. So mi do is the most annoying female lead ever. Everything she did, especially throughout the second half, she was being a b****. I tried to see things from her perspective but I couldn't. I can see how it was hard for her to make a choice between Han Tae Sun and Lee Jae Hee. But the way she acted was wrong. She should've been more understanding towards Tae Sung. He had gone through so many hardships before. I felt bad for him. Also the way he is sticking to Mi Do even after what she has done. I hated him a little bit for putting up with Mi Do and forgiving her. This is one of the first dramas that I was actually rooting for the second female lead. I have a love-hate relationship with all the characters except for Chang Hee, Jae Hee's brother. He was the only character I loved throughout this show. Oh, and the bromance between Chang Hee and Tae Sung! What I love about this drama is that no character was completely good. Every character had an evil side to them, including the leads. That part of it is realistic I think. That is different from a typical kdrama in which the lead character is like 99% good. Overall, the concept was well put together.