I haven't seen the first season of Romantic Dr. Teacher Kim so I came in watching this with no expectations. While there are some good moments, I have a lot of issues with this drama.
1. The last episode is so messy. Why are the writers still introducing many issues, making it seem like there was going to be a few more episodes, when clearly it was the final episode. That doesn't make sense. Also, kind of a weird way to end with the villain still on screen. Usually, the battle with the villain would happen at beginning of the last episode, not the tail end. Bad placement in my opinion.
2. Dr. Park should've had character development at Ep 10 once he confessed to Dr. Kim about his past guilt trip. He should've went from a guy who wanted to see Dr. Kim lose everything to a guy who forgave himself and began to change his ways, become a doctor that he should be, and work together with Dr. Kim to defeat the evil chairman and save the hospital. But instead, the writers were lame and kept him still against Dr. Kim, until the last 2 episodes. For what good reason? Nothing. Didn't make sense at all.
3. The lacked of and forced romance. Why even bother showing romance when about 90% of the drama doesn't even focus on it? I did like Woo Jin and Eun Jae together but this drama doesn't do justice on showing their developing relationship. It seemed more like friends than a boyfriend & girlfriend relationship. I couldn't see the chemistry. The secondary couple Ah Reum and Eun Tak, I don't know, it just wasn't convincing to me that they had chemistry and the lack of scenes showing them they really like each other weren't there either. A kiss in the last episode for both couples, while I did like seeing it, doesn't make this a romantic drama at all.
4. The character of Eun Jae was shafted considering she's suppose to be main lead. Her story was pretty much ignored in detail, including gets nauseous during surgery and her family issues. But how was it solved (if it was solved?). She took pills to prevent being nauseous but was there a backstory on why she was like this? If there was, it's not very clear in the drama. Did she continue to take the pills?
5. Why even bother tell heartbreaking stories of their patients that the writers leave unsolved? I know they're not the main plot but still, it would be better if there were closure to the side stories. Example: the ill son who's mom was abused by his dad.

Good parts of this drama
* Dr. Kim is the best character in this drama. He makes this drama watchable with his smart comments
* The support of the Doldham hospital staff. Everyone has each other backs, especially my favorite Mr. Goo.
* OSTs are always on point.
* The tributes they paid to the paramedic worker and to the previous president of Doldham hospital. These scenes were so emotional for me.
* Realistic medical scenes

Overall, it's just okay drama for me. I wasn't too fond of how the writers handled a lot of situations, plot was too messy especially the end, and how they wanted to show romance but was a far cry from it. Either show a good amount of it or don't even bother with it. But, it's up to you if you want to watch it or not. It's a great cast nonetheless.