There are some awkward scenes like dance rituals which reminds me of the movie "500". The civilized society seems a lot like Roman times. Some structure are definitely traditional Korean, but some seem to be an simple copy from "Game of thrones". However, there are many good, experienced actors and actresses who make this drama very addictive and live. And the story itself is very creative and real. Very interesting, I cannot stop watching them and maybe I will watch all over again. Very good.