This drama is super dark and very depressive. It's a pure dark version of school, talking about the cruelest reality of bullying, abuse, violence, and suicide.. Here you will meet the most horrible, stupid, disgusting, fake, creppy people ever. Don't think this will have romance or cute friendly moments, it's completely the opposite. Every single person frustrated me, just because they were so real and sometimes I was really pissed off by the horrible people that exist in the world. The actors did great!!
Overall, the drama it's pretty good with a simple story, but I think the music it's really bad. There's actually morals in the story that people should pay attention to. Anyway each episode has arround 30 minutes, so yes, you have to give this a try. (If you are sensitive to this kind of content, then do not see it)