Forget the tralier. honestly probability of dropping this drama is 50% if you choose this drama beacause of tralier. Tralier and park shin-hye deceived me. The first episodes in the past are perfect but in middle you want to drop it. It is so boring in middle till end. I watched 3 last episodes in 2 hour. Really so boring for me. If kim rae-won wasn't in this drama, this was in my dropped list in ep8. The result is ( i hate medical drama forever ) I just recommended it for who love medical(60%) and romance(40%) in slow pace.