This drama should have been so good. It's an interesting concept, based on a fascinating mythology. The cast was great, the OST perfect. There were beautifully shot scenes at incredible locales.

So why only (a generous) 7.5 stars? The writing was abysmal. So much squandered potential wasted on plot holes, unexplained events, and clunky dialogue. The problems continued to accumulate until the very end. I really wasn't sure how to rate it - the story itself is beautiful, the problem was entirely in the execution. Sometimes I was sure the actors were inwardly cringing while delivering their lines. I'd really like to see is a remake done by a competent writer; this story deserves to be done properly.