This show starts all right, a bit over the top, but that's to be expected.

I don't even wanna write a review for it, it's that disappointing. However I feel like I need to, because I was tricked by the overall rating.

If you're watching it expecting a serious social commentary that portrayed horrific events in a realistic and respectful way, then don't watch it. The depictions are cartoonish and over the top, teens (as much as I despise them, too) are depicted as animals lacking in any moral compass, like they need to be taught why murder or rape are not okay.
I assume since we are all humans, and the children in Korea don't have their moral network extracted, then put back in again once they reach adulthood, that this is exaggerated and ridiculous. Thus providing no meaningful social commentary and is instead something to watch so the amazing supporting cast can make you cry.