"The devil is in the details " because this was one hellish movie to completely enjoy. Week after week after week the viewer is challenged to remember intricate details of the lives of multiple characters in two dimensions and in two kingdoms. After 13 episodes the drama seemed too complex and convoluted and the temptation to drop or give it a low rating was in my heart. However, I realized that the questions I kept asking were "Who is this character?" " What Dimension or Kingdom? " and "What Time frame Is This ?" This is the quandary I was in and it needed to be asked constantly. and while watching it was often unanswered. The writer had brilliant ideas but the execution of them were lost -- first in translation (simple translation notes or aides would have helped the viewer understand what as going on each week. Helpful also would have been a refresher summary since the drama was so convoluted. Having criticized the production and visions of the director I must now explain why in the end I found enjoyment in the drama.

The Acting - A+ The expressions and chemistry were extremely good for the leads and supporting actors did an excellent job. Many had to play dual roles in two worlds and had to exhibit different character traits to carry out the distinctions of the two worlds. Kudos for their efforts.

The Story -- B- Unable to follow consistently. I had to binge watch (rewatch) after 7 weeks. I also needed to use other websites to find reviews and recaps to try to follow each episode during the rewatch. I also needed to read several comments to try to find hidden meanings and clues to the stories progress throughout the drama. Basically could not watch without a CHEAT SHEET

Once I had my Cheat Sheets and Techniques -- well the drama felt like I was watching Inception. Time twisting, parallel universe, mathematical principles and theories all were worth researching in an attempt to understand this jewel in the rough. The only question as a future viewer (if you haven't seen this drama) is - are you willing to research and study recaps to get a full understanding because the editing the story just makes you frustrated. Living on the rewind button during the rewatch to understand was no fun.

For the Future Viewer -- Watch - it is a beautiful drama and a good romantic drama. The ending was satisfying.