The main reason why i watched this drama is because of YSH.
the story seems very simple at first until the twist was revealed. I wouldn't consider this to be my most liked series of YSH but it's not that bad. I just don't feel a good chemistry bet him and the female lead.
another point is that, it has nothing special ( the story line).

I love how it opens the minds of people that corruption is everywhere , yes even at schools. but it's too unrealistic, I mean no student would dare put down an entire school.