One of the most thrilling and super emotional (i cried like a baby at least 5 times) viewing experiences.
A perfect mix of all emotions and the most realistic writing next to attack on titan.
Great and Realistic Character writing.
10/10 acting.(i dont wanna give spoilers so i wont in deep )
The story unpacks at its own pace and it's perfectly done in my opinion.
it's not rushed nor does it drag.
the characters arent dumb, they act like how they are.. for example, the police wife has enough brains and will to do things as the police would do.
And visuals are 10/10 and ed and op are 99/10

but there is this character "accomplice ", some coincidences and stuff related to him are a little are not perfect like other writing in this show.
and alsoo character called moo jin becomes friendly with Do hyen su too easily (not complaining about later in the story but the starting episodes)