The thing about this drama is that it's sligtly...imbalanced. It deals with a serious subject - sexual abuse cases - in a way that could almost be called lighthearted. Not that the two can't go together, even the most serious of stories, perhaps especially those, need moments of levity to balance things out. However, the main issue of this drama is not that there is a silly moment here and there, but the lack of consequences. That is a thing that can be seen all througout the drama; characters (read: Ma Yi Dum) make mistakes and then they bounce back the same as before, not having learned a thing. Ma Yi Dum for example silently witnesses the sexual harassment of somebody and speaks out only when it becomes advantageous to her to do so. Certainly, she does undergo a certain amout of character development over the course of the drama, but it seems...like it does not come organically. She is never truly forced to examine her own actions, admit that she was wrong about something, she is never actually pushed to reevaluate her priorities or her morals.
I see a lot of people here complaining about her character, that she is a horrible person and a horrible character. In my opinion, only one of these is true. She truly isn't a good person, especially towards the beginning. But I don't see a problem with that by itself. Just because she's the lead in a drama doesn't mean that she has to be a good person, she simply needs to be a good character. She can have questionable morals and make questionable decisions, there is not a problem with that. However, the problem is that in the context of this drama, she is rewarded for that sort of behaviour. Her superior scolds her, but she makes nothing of it. She loses her job, but gets it back eventually, and she is the same as ever. She waltzes in at the end of every episode with crucial evidence, she is always, in the end, the winner. And that is a problem. In my opinion, what this drama should have done was to feed Ma Yi Dum a nice big slice of humble pie, and that would have been enough.
The plot is not original (isn't it though?), everything is kind of fleeting, but I liked the cases, I liked that the drama didn't try to make some big political statement, i liked the chemistry between the two main leads, I even liked the storyline about Ma Yi Dum's mother, I actually even kind of liked the main villain. There is a lot to like about the drama, in short. Maybe give it a shot?