It's bromance for me! It reminded me of Ling Yao and Greed from Fullmetal alchemist brotherhood. From enemies to sworn brothers! 100/100 for the bromance.
LDW was good, as expected, but I was seriously surprised by WHJ. I only saw him act as serious characters, but here he was pretty goofy and did a very good job. I think he stole everyone's heart here. With no doubt my fav character of this show.
My second fav character wouldbe the mother! She is sooo loving and caring, definitely one of the best moms. And the relationship between her and soo yeol was sooo touching.
The relationship between soo yell and the doctor was hilarious, I enjoyed their scenes a lot.

But aside from these points, the series was pretty average, if not below. The crime part was too predictable, they could have tried to make the villains less obvious. And the romance was sooo out of place, it would have been much better, if they were (best) friends, frenemies or remained exes.

Overall it was a fun, bromance focused and crime related series. If you are looking for a Good cop/crime story, this isn't for you. This is more meant to be as a fun series.