Either i'm easily impressed or everyone judges too hard. I'm not really into high school dramas as i'm a bit past that age but this one was quite nice. The story wasn't that unique as the twin/look alike thing has been done multiple times (Bride of the Century, Mask etc) yet it was still a nice story to watch. Taking place in a classroom environment it was nice to see the problems that students faced. I watched this one while it was airing and it was just a show I watched along side others. Nothing to intense, a slice of life drama with a mystery attached was all it was. One thing that bothered me was how fast Yi An moved on from one sister to another which made it a bit uncomfortable for me, at least. Acting was superbly done by Kim So Hyun. I've watched her acting here and there but thank goodness she got a chance at a legit lead role. This girl is amazing for her age, like seriously. Totally a fan. Of course, props to Tae Kwang for making me fall for him and root for him. As for Yi An's character, I wish it was a bit better written because I found him lacking (not the acting). And last but not least, So Yeong. This girl made me hate her guts and that is superb acting. She was able to be all innocent around others and then give her character a total twist into a monster. It was amazing and made me feel as if I were the one getting bullied. Not going to lie, I felt bad for her character at some points. I hope to see her more in the future. All in all, this drama had such a talented, young cast and it was great. Shout out to the teacher and the students' acting as well! Music was definitely great. Repetitive at some points but very lively. Overall, a great OST. 'I wanna reset~~' cause I'd love to relive this drama. I'm not really one for re watching, but it was definitely a great one time watch. I actually told my 12 year old sister to watch this. It was her first drama and she finished it in a snap of a finger. She loved it and I was a proud unnie. Now she keeps bothering me for more but I have no idea what dramas to show her. Oh well, I got myself into this :')