okay, this is my first time writing a review, bear with me ^^' I love this drama. i love it. 99% of it. Why you may ask? First of all, we have kim so hyun. she's an amazing actress, as someone who's like 2 months older than her i feel so untalented. the way she plays eun-bi and eun-byul is completely different! you can tell who she's playing just by looking at her eyes! (though tbh the eyeliner played a big role too XD) Another actor who did a very good job on his role was sungjae. i hate idol-turned-actors , with a passion. i can't count how many dramas i have dropped because of their terrible acting; but sungjae is different, like he's my favorite character! his smile- Oh God his smile. you'll just find yourself smiling with him. Jo soo hyang, you can just tell how good at acting she is since everybody hates her in this drama. she almost made me throw my laptop out the window. i just hope she doesn't end up like UEE- everybody calling her a b*tch because of a role she played. as for nam joo hyuk, he has room for improvement. the reason for the 9.5 for the cast would be him. but he has han yi an's aura so he's okay, i shall let him pass. the story....hmmm.... it's not really a school series type of drama, they should have got ridden of the school 2015 title, people come watching it expecting something else and ending up dissapointed. but it's a great drama anyway /(^_^)/ the story started out amazingly. the whole mystery, is eunbyul dead or not, what happened to soo in, what's with taekwang's dad, ect. will just suck you in. you'll end up addicted to this drama. too bad they started focusing on the love triangle and just.... ruined it? if they continued the way they were doing it in the first half i would have gave the story a 10- but oh well not everything can be perfect :| Music? definitely a 10. Reset is my favorite OST ever. if you dont watch the drama, you should at least download it's OST; it's so worth it. the rewatch value is a 1. because first i don't rewatch dramas, out of th 200 or so drama's i have seen ive only rewatched like - 2? , and also because the mystery was a huge help to the drama and i feel like it will lose it's charm while rewatching. overall i gave the drama a 10. even though the ending wasn't what i wanted i think it still deserves a 10. it was one of the few dramas that i watched till the very last episode while airing (i dropped pinnochio while it was airing, so that should tell you something). looking for a nice romantic comedy slash mystery? i's say give it a try.