This show has a nice cast, which acted very well, nice photography, nice locations, nice music, nice CGI, awesome story-concept. Seriously: in this show all is nice, but the screenplay. Not sure, who's the story-killer (sure not a story-teller) who gave birth to such an embarrassing garbage.
I feel stunned because of the way the pretending-to-be-a-screenwriter could massacre a so fantastic subject like the one on which this show is based. This show had all the good premises to become something epic. Instead the outcome is tragically mediocre. To paraphrase Ji Ah "this story might really become a tragedy": and actually it did. A storm of plot-holes, plot-nonsenses, plot-oddities, eventually led me to rate this show 6.5/10, of which 4.5 points are given because of what mentioned at the very beginning of this review.
Delusional, disappointing, unbelievably frustrating.
If you need to be inspired to randomly f*ck off the world, this is the show which will give you a valid reason to do it.