I didn't even start watching this drama until after the 15th episode had aired. In my experience, school dramas are virtually all the same, just with a different cast. This drama was, surprisingly, really good. It was a lot different than I was expecting. Where other school dramas are bright and fluffy (and seriously, do we ever actually see them go to school?), this one was a lot darker and more realistic. Where others focus more on the romantic relationship(s) between the three/four main characters, this show was all about the relationships between the whole class, teachers included. One thing I can say about this show is that it was amazing at making me emotional. I don't cry often when watching dramas unless I'm really touched, but I found myself in tears often while watching this show. Future shows like this need to pay attention to this show. Hiring actors instead of idols makes a world of difference. That being said, while I enjoyed most of this, there were some things that bugged me constantly. The one thing that never sat right with me about this show was how the class was portrayed. When you listen to K-Pop for a long time, one thing you notice a lot is that music videos about school get banned instantly the second someone thinks they see even a hint of violence. I'm not a fan of hypocrites, so to see a show aired where school violence is such a major event (even though I understand this is how schools are there), it's incredibly irritating. Another thing that bugged me a lot was the way the writers went about making certain things happen. In order to make sure misunderstandings would occur, they'd always set it up in a way that was horrible to watch because it made absolutely no sense. Somebody would suddenly do something they would never do otherwise, and you just know that it's happening for the sole reason of making the misunderstanding seem true. Now then, as much as I disliked all of that (and some other things that I feel are too small to be mentioned), I was absolutely in love with this cast. Their chemistry and the ways they interacted with each other were a joy to watch. I had absolutely no trouble believing any of it. It really helped that almost the entire cast was given a backstory of their own. When you give an actor a reason to act like they do, it lets you connect with them and that, in turn, makes their acting believable. The music for this show was okay. I wasn't blown away by anything, but it wasn't horrible either. If I were going to rewatch this, it would be in the distant future, and I'd be doing a lot of skipping. Especially the ending. The ending for this drama was, by far, one of the least satisfying endings I have ever seen. That alone almost had me giving this drama a score of 7 instead of the 8 I gave it. Overall, the drama wasn't as mind-blowing as people were making it out to be. There were a lot of times during the first 2-4 episodes where I was seriously considering dropping it. If I had watched this as it was airing instead of waiting as long as I had to start it, I can almost guarantee that I wouldn't have finished.