Too cartoonish for my liking but the actors are good, the production value is good and enjoyed the story. I love political intrigue but as usual the activistic leftwing party is the good guy (like in almost 100% of the political dramas, it's so predictabe) and the endless virute signalling (woman are good, men are bad, employer bad, employee victim) have been done a trillion times before.
When I write cartoonish I mean especially the villains, no redeeming qualities whatsoever. So you get the gist early on.
Although I would have loved a series with more depth, more (believable) twists and originality (played by the same crew because -again- the actors can act and the director can direct) and perhaps a bit less emotioning so common in many Korean productions, a better, possibly more neutral and/or clever storywriter could have taken this series to another level.
6,5 (first part is definitely better and deserves perhaps an eight)