Ok so I just watched the season finale, and I absolutely loved it! The show was just amazing, and honestly one of the only things that kept me going every week. I'm not one to write long reviews, but I will. But first, I will say I am salty towards the writers for keeping Hae-seong and Su-a's "special moment" until the last 5 minutes... I mean, it kept the anticipation high but I would've wanted more (especially in light of all they'd been through).
Other than that, the comedy, action, thriller, mystery just EVERYTHING was amazing. They managed to fit a pretty big story into 12 episodes, although I would've like it to be 16 so I could keep my family a little longer. I enjoyed the different character dynamics, the looks (ESPECIALLY the looks) and the acting in general was pretty solid. Heck, Su-a's storyline almost made me want to become a teacher!
Anyway, I WILL be rewatching on the regular
MBC PLEASE PLEASE PLEASE RENEW UNDERCOVER HIGHSCHOOL FOR A SECOND SEASON.
If I don't hear news of renewal within the next week, I might actually burst into tears.