I wouldn't rank this as one of the best dramas in 2011. This is highly overrated in my opinion. It starts a little boring but picks up the pace after the prison break. The plot is not exactly unique but at least different from other Korean dramas from the Joseon Dynasty. To be honest, I actually regret that I started watching this. Too much crying by the lead actor and it's a tad too long for a drama just to introduce the korean alphabet. There are also interesting yet underdeveloped characters such as Karpei and Yoon Pyung. It would've been better if they provided us with back stories and how they came to work for the Hidden Root.