First time I'm recommending all of u just go for it without any doubt yes the ongoing hype and the charm of the 2 actors are worth watching plus it has fantasy, drama, romance, bromance,suspense...
You can't be bore in any episode.. The storyline is quite promising..
Everyone just doing their side greatly, you 'd fall for every character of this beautiful drama.
K-drama on it's peak and this type of dramas are the reason for this success..