I must say first of all, the beginning of the drama is incredible. The end of the first episode was obviously confusing, but everything after episode 2 was genuinely really good. I loved the characters and ther interactions during the university part. The characters' stories, the MC's development, the humor, the pace, ect, were all great. There was a little bit of "romance" but not too much, which really fits my taste. I loved every bit of it. This really doesn't happen with a lot of series since I usually have a few complains but here I was really impressed and hyped.

Then why am I giving this fairly mid rating?
The biggest issue with this drama is that the writer forgot to pour new ideas into it. Once the MC graduates from university and becomes a prosecutor, the scenario becomes slower, more repetitive. The MC becomes a mastermind that gets all his plans right and follows the exact same scheme of thoughts and the same strategies to succeed. Every characters become the more boring version of themselves (like are you not allowed to have fun once you graduate from university in Korea?), and their development basically stops. The MC defeats bad politic guy after bad law guy to get to his main target and after the first two cases it's just boring and predictable. It becomes like one of these average good guy vs bad government shows, which is sad given how well it started. It's as if the writers lost all of their inspiration right in the middle of the show...
(Also, this show has way too many characters and never stops making references to characters from earlier episodes that are barely relevent to the plot, which makes it super confusing after a certain point.)

However, I must give credits where credits are due. Overall the actors did an amazing job and not a single one of them felt out of place nor unconvincing.
The production was also great. Though at times the plot felt a bit slow, I never felt like I was watching a poor quality scene. The show was also pretty good at building momentary tension.