BROMANCE!!! This one word explain everything. I'm curious about something. Did they choose the male cast according to their lips?! Seriously I was watching their lips not the drama! Anyway cast is amazing. Even the ones don't have lines was great. Jongsuk's bad boy acts were amazing. He has a cute face but he really pull that off! Woobin is usually plays a bad boy and the one that "gets no love in love triangles". Daniel is good at showing the emotions with only his expressions. He does not need words or background music. I hope he'll play fun, happy character next time! I'm usually picky when it comes to actresses. This one I like Hyoyoung and Jang Na Ra. I love Nam Kyungmin! I saw other school dramas too but this one makes me cry the most. This one has no significant music that I can talk about. They could've use amazing songs but they didn't! So many teacher jung scenes makes this show a little boring. Why show every text scene with details? Just show she's texting who if you wanna show it so badly. That was unneccesary! STILL I like it. It's worth to watch it but only once.