Let's just get straight to point.

Every episodes are worth to watch to be honest. More likely the first 2-4 episodes were very good but in the middle part of the series the consistency of the hype was gone. It's just like a normal episode and nothing new. The main story on how the past and future connects was really predictable which makes me forced to finish the drama atleast until the end. Overall all it was a good drama but the thing is it is just another generic reincarnation-fantasy korean drama which is you'll going to predict the ending.