I really liked this drama especially the twists and turns it takes which keep you engaged in the plot. It never wavers or drags. There were few light moments, so keep in mind that you will be watching a lot of intense violence and cruelty in these episodes. Song Kye Hyo shines in this drama in a very understated way as the adult victim of high school bullying who sets out to take revenge on her school bullies.

The drama depicts a society in which victims are terrorized by the rich and powerful who get away with crimes by buying off the right people. In this case, Moon Dong Sun (Kyo) is a student who is targeted by the worst bullies in her high school. Her torment is exacerbated by the fact that her cry for help falls on deaf ears and, with money, anything can be swept under the rug. That sense of hopelessness this creates propels our FL into action as she wills herself to live for revenge.

Kyo, and actress Jung Ji Soo, play the older and younger Moon Dong Sun respectively. They masterfully bring the tormented teen and steel-willed adult together to birth an avenging angel, ready to mete out punishment on her perps, while discovering the humanity she thought lost thanks to the help of caring adults she meets along the way

The perps are unfortunately depthless caricatures of how a bullies behave. Their cruelty is so over-the-top that it transcends the line between high school bullies and criminal deviants. There is no backstory on any of these perps. You only get a glimpse of their family lives and the subtle hints of the superficiality and lack of genuine care to explain their deviancy. In the end, there is more to these teenagers than just normal teenage aggression, and this is done for the sake of dramatic purpose. The drama could not be as compelling were it just a case of high school bullying, as that kind of behavior is often forgotten with time and maturity. So, making them straight up criminals makes for a stronger plot and justifies our heroine's need for revenge.

The surprising thing is that these perps have not lost touch with each other. They are all tied together by their criminal secrets, love affairs, and selfish intentions. There is no camaraderie or love lost among these five bastards, and you wonder why they still suffer each other? At least it makes it easier for Moon Dong Sun to plot her revenge.

The romance angle is the weakest part of the plot. There wasn't any chemistry between the female and male leads. I wish they could have thought of a better way to keep them in each other's lives without resorting to that tired old story. Perhaps that was the respite to the heavier plot points.

It was still a better written drama than I was expecting, so I am pleased with the results. It also had a nice soundtrack and I would recommend this to audiences that like revenge plots.