I just want to say if the writer hides a story from the audience and bring out like it never happened earlier then I would say it's kinda look alike betraying with their fans. Mostly goes with this drama. In first episode it creates intense to go for the second episode. Nevertheless it revealed that there were more stories at their intermediate periods.
Moreover, the relation between the lead characters are bit confusing! I find a quite lacking in the supporting characters story. And the story telling is a little bit slow.

Most of all, I am disappointed but never know other would loved it.