This drama has several pros and cons within. But since i've known nothing about the story from the novel and i'm not a fan of the casts, i'm confident enough to give a just review.

Story
Since i don't know about the story at all, i find this drama has a promising story and it would become a hit if the story is developed well. But in fact, the story isn't well developed. There are several inconsistencies and plot hole within the drama. But fortunately i can grasp the whole big picture of the drama. It is draggy but i don't think it is as draggy as several reviews. The pace for 25 episodes (for me) is consistent and it become inconsistent afterwards. The ending is just good enough. It's is not that satisying or that dissapointing. With such a huge range of characters, this drama shouldn't just end that way.

Acting
All the cast must have done their best in the completion of the drama. But, i concern about the casts. The first male lead sometimes being inconsistent while the first female lead might have problem in expressing sorrow or pain. The casts selection is good already, but the execution of the characters isn't well done. The first female lead surely can act. But, she has problem when it comes to expressing sorrow or pain. I just don't get the feeling about it. A good point from her acting is a natural acting when it comes to calm ambiance. The chemistry is quiet good. The ace of this drama to me is the princess from the enemy's country.

Music
I'm no that fond with the songs from this drama. But it's okay


Conclusion: just watch if you have much time to kill.