I really loved this and watched the entire thing (parts 1 and 2) in a weekend. It’s a truly fantastic revenge drama that delivers on everything you want from the genre - the inciting incidents are brutal enough to put you firmly on the side of vengeance, the villains are interesting and insidiously evil enough to make their eventual comeuppance satisfying, the reveals are well-paced and add new layers of nuance, the plot reaches a solid conclusion that feels right, and they even manage to make a romance work amongst the carnage.

One of my favorite things about the story is how openly the revenge game is played. Dong Eun tells them all along that she will make them pay for what they did to her, warning them over and over again that she’s serious and she has put the time in to get what she needs to ruin their lives, and even gives them additional chances to atone and confess on their own before she puts things in motion. And she never resorts to committing any horrific violence herself. Every single person who stands to lose something was given fair warning and it’s their own hubris and defiant belief that they can get away with anything they please that ultimately brings them down. That’s just extremely satisfying from a storytelling perspective.

There were a few things here and there that were not perfect - some of the coincidences were a bit much and I wasn’t too fond of the subplots with the two male teachers - but those are very minor quibbles. Highly recommended and great for a binge watch.