W had a great idea for a good story, but failed to make it till the very end. Somewhere between the second and the third episode, the drama reached its peak. The story is quite interesting and unique, so kudos for that. Plus the romance was okay, a little weak though, and the performances very good, as the actors had to work with the whole fantasy world, action scenes and of course the exchange of worlds. However what ruined the drama for me were the flash backs. There were so many!! Except from the first five minutes, that were a recap of the whole series so far, which is kind of understandable, the back and forth-s were too tiring. And they were repeated constantly, which was annoying. Finally, the twists were interesting and entertaining the first time around, but the drama seemed to have actually ended at the ninth episode, and so the rest of them were just repeating the same twists over and over. In addition, I would have liked for the whole two worlds universe to had been explained better. So 4 out of 10.