Didn't like the introduction of them while kids everything about it felt disingenuous. Pacing issues were too obvious to ignore. The plot moves extremely slow +10 episodes for every single event with little to no side plots to keep you occupied. The problems didn't end there, the drama suffered from...

I believe it was a ratings juggernaut in Korea when it was broadcast. Other networks delayed release of their drama's as to not compete with it. This is one of the greatest tv shows i have ever seen. I have seen it at least 3x and own the box set. One aspect i like is how we come into this drama ...