The drama is okay ..just OKAY ... Though the story was impressive but judging from its rating I can say it failed miserably in cast and its acting. Sometimes it felt like actors are just reading dialogues instead of acting them out .. especially the leads they acted the entire show with cemented expression.
Other than this the drama had a lot of technical and editting problems which are clearly visible even to normal viewers ..for example same exact scene is (where the ML and helper talks about FL lying about being princess) is repeated in both ep 2 and 3 ( may be 3 and 4 ). In some cases two continuous scenes don't have proper cut and paste (they havent joined the clips properly) you can figure the lose ends of both clips ...fighting scenes ( done with ropes ) not properly acted or editted ..
In fact it was the first ever drama, I have seen such low grade editting as if it was done using an cheap phone instead of a proper software.