TL;DR: Neighborhood/family dynamics like Desperate Housewives; extraordinary plot development like Quartet
story about how a tutor can change the whole family like Kazoku Game.
With some take-home messages for parents who put too much stress on their kids.
(and if you grew up with that sort of stress and overbearing parents, then it might be slightly triggering--

This was much more than what I imagined it to be.
Parts of it are super relatable to any person in the modern education system, and then there are extra plot points that are just friggin' wild (yet completely believable given the main characters' backgrounds)
And I love it.
It was 19 episodes of intense development
then just as I was about to complain that the 20th episode was a letdown, the writers bring back some themes to make it go full circle
I love the foreshadowing and the way they would show some scenes to briefly insinuate points that don't need detailed explanation
makes the whole story just so much more intense because whatever scenes they do show, they are necessary to our understanding of the characters.

The acting too. I think all the roles are very well-done, and it's no wonder why SKY Castle swept 4 prizes at the Baeksang Awards. Ofc the veteran actors are great; but young actors-wise I'm particularly in love with Kim Hye-na's actress -- you'll see why as you watch on.

As someone who grew up in a high-stress environment, a lot of the dialogue is relatable and slightly triggering
but at the same time I was just happy to see that some of the crazy myths I grew up with are discussed and debunked in this show
And I really hope that more people would watch and learn from this show.

So yup. Would recommend to anyone looking to kill 20 hours with something addictive and exciting.