This a drama everybody needs to see in my opinion. It is a very beautiful story and certainly brings a lot to think about. I'll split everything into pros and cons, to organize my thinking. Pros: Acting: Wow the actors that played joonyong and jihoon did amazing in my opinion. Seo jihoon, the actor that plays joon yong, played the rapist in signal, and did a really good job in that (almost too good). Then he plays mr. cutie joonyong in this. How?? That is called talent my friends. Dong yoon (i think that's his name), plays jihoon and does such a good job. He's suspicious enough that we suspect him, but vulnerable enough that we trust him no matter what. He played such a complex character and did such a good job at that too. And this is his first drama??? Like how did he do such a good job?!? The boys: By this I mean jihoon, joonyong, woohyuk, and sowoo. They totally stole the show. I could really feel all of their characters and what they were going through. Even woo hyuk. I really enjoyed all their characters and what they had to add to the show. You could learn something with each of their characters and I really enjoyed that. The music: there are some really amazing instrumentals in this drama, that really add to the intensity of the show. I wish they were released to the public because they're really pretty! The story: The story is really well done and had me interested from the beginning! It had me guessing until the last episode! I personally love murder mysteries and high school dramas, so this is my cup of tea. The lesson: this is the real reason why I love this show, it has so many valuable and meaningful life lessons. And what I love is how they intergrated the lessons into the show, I never felt like they were shoving it down my throat. It all felt natural and as if I was learning with the characters. Cons: Seo yeon: this is more picking at straws, because overall I liked her character. But she did annoy me at times in her trial. She had her heart set on something she believed it no matter what...even if it was a bit ridiculous. But she was doing the best with what she was given, so I can't get on her case too hard for it. The ending: I had a real problem with the ending at first. It seemed a bit...unbelievable to me. But as I pondered it and thought about it, while I still find it unbelievable, I'll take it as a lesson. I would honestly recommend this drama to everyone, young and old. It has a very beautiful message and is now in my top 10. I could honestly re-watch it right now, and sorta want to actually. This drama is very impactful and will stay with you even after it's over. A sign of a quality drama if you ask me.