You should watch this drama because it contains soo many good aspects in it!! Like friendship (LOTS), romance, supernatural type of thing and the special effects are amazing and the cast and characters, I love everything about this drama!!! The ending to me was not disappointing because I feel like if you understand the story and the drama then you should be able to understand the ending... and why the ending is like that.... In fact I wouldn't even call this disappointing!!! THIS WAS A FANTASTIC FANATSY HISTORICAL DRAMA TO WATCH!!! OMG the OST is sooo amazing too because the actors sang it too!! I FULL ON RECCOMMEND YOU TO WATCH THIS DRAMA!!! ITS NOT DISAPPOINTING TO ME!!!! ALSO THIS NEEDS A SEASON 2 LIKE NOW!!!! so please do not hate on the drama, its so good, the ending may not make sense to you but if you think about whats going on in the last episode then you should be able to understand the ending!!!