I must say, watching this was a great thing, but I will wait a while before I watch it again. The story was great until a certain incident happened, which felt like a truck rammed through my heart repeatedly. I still loved the show but I hated what they did. It was so not cool. It made me angry and that's why I'm taking away points for that. I really got attached... *sigh* You'll see what I'm talking about when you watch. I don't want to spoil anything... I loved the fact that it was about the friendship between the guys and watching them grow and become something else was cool. It would have been nice for them to stay together even after high school. But ya know people go their separate ways. The casting was too perfect. Way too perfect. There was a lot of great bromance! It was just perfect. I got hooked thanks to Min-Ki oppa's character, Byung Hee. He was strange yet funny and attractive. I fell in love with him instantly. I wasn't going to continue the show because of what happened after episode 1 but Sung Joon oppa's character Ji Hyuk made it possible for me to continue. I fell in love with him too. The other characters were great, even L's character. He was a bit scary tho. Haha! The soundtrack on this show was incredibly amazing! It wasn't a boring drama, just filled with lots of emotions and about love and friendship and music. It was perfect! I would recommend this for people who love school/love/friendship/music type genre of dramas.