One of the best k dramas. It's rated 7.9 on imdb, I feel it should be rated higher than 8. You don't need romance everytime. This drama is good as its different.
The highlight is the bromance. The chemistry between chief Kim and Lee jun ho is outstanding, they can be called as best couple, and I guess they got an award as well.
The way they try to out do each other, and in the end they develop a bond.
Chief Kim and his comic timing is really good. It was refreshing and funny to watch this drama, which was different from the usual crime thrillers, horror and romance.
I keep watching it's clips on YouTube repeatedly.