brilliant casting, great production and a powerful script.
In high school, the protagonist was essentially tortured by her classmates and nobody did a thing to help her. the show is about her revenge. I feel like season one is just her setting the table and season 2 is going to be the real feast.

the cast really did a great job bringing the characters to life. so much so that you'll find yourself wanting to punch people through the screen. Song Hye Kyo really did redeem herself with this show. I'm not saying that her last two shows were horrible just that they weren't doing things for her.

anyway, I really enjoyed the show and hope you enjoy it too