Even though this show has a decent rating (8.6 at the moment), I still feel like it is underrated/underhyped by a lot of people. Even though there is romance in it I really wouldn't describe this as a romantic K-Drama or at least not a typical one. Other aspects of the show were focused on more than romantic relationships though it was the romantic feelings that weaved these characters together.

This show did a really good job at viewing people in a very realistic way. No characters besides the main bad guy were painted as overly good or overly evil. Everyone had their regrets, their sins. Even the most kind and gentle looking characters had some "dirty secrets" in their past. It showed this balance of good and bad we all have in us and no one is perfect but you can make up for your mistakes by growing into a better person in the future. I also feel like we got to see a very wide range of characters/stereotypes throughout this show so it kept each episode fresh and worth watching. There really was no episode where I was bored, all of them were decent at minimum which is saying a lot for a K-drama.

I've seen a few people complain that in the beginning they kind of showed us these details from the past but then didn't mention them for a bit but I think they way the past and future unraveled together was quite good in this show compared to others that have a lot of flashbacks. I really like how they tied things up quickly and revealed some big shockers in the last three episodes instead of doing the "lets drag this out to 16 episodes and put in a bunch of unnecessary scenes". The last three episodes were really great and I was happy this drama didn't go into a lot of the typical clichés we see in dramas nowadays.

If you are expecting a romance K-drama, this definitely isn't for you. This drama is more about relationships in general and most importantly the relationship we have with ourselves. In one episode you get to explore the relationship between a parent and child and in the next you get to go into the relationship between friends or between lovers or coworkers. Even though this show followed a definite outline for each episode, it never got boring. In one episode you would find yourself laughing and in the next, or even the same one, crying.

I wouldn't call this some Oscar worthy show or anything over the top but it was quite good. Even though it has this very spiritual/mystical atmosphere about it, it really shows this very realistic portrayal of what many people go through in their lives. Its a simple but fun show.