Eighteen years of planning a revenge just for it to be executed so badly, and exposed so early on.

For 4/5 of the bullies, Moon Dongeun really had zero leverage over them from the beginning. She was only able to come up with a plan AFTER Son Myeongoh provided her their dirty little secrets. What made the show really hard to watch is the lack of backstory for Moon Dongeun's planning of the revenge. Things just happen and you have no idea whether it's by her own hands or somebody else. Her so called "planning" is flawed and unstable. How can she confront the antagonists boldly when she doesn't have concrete evidence on their crimes yet? She sets up traps for the antagonists and it's up to them to go against each other. In other words, she relies purely on luck.

The ending is unsatisfying with so many unaddressed loose ends. The bullies got their revenge, but the emotional damage done to them is nowhere equal to what scarred their victims. There are so many terrible crimes revealed throughout the story that were never brought to justice, or even brought to attention to the public. For example, the sex trafficking at the shaman shrine.

It's a shame that the drama doesn't expand more on school bullying, SA, and domestic violence. All the director wants to do is put focus on romance, and useless side characters. Anyone could have taught Moon Dongeun chess. The ML barely contributed. Also, what was the purpose of having Kim Kyungran stick around during adulthood if she's going to be completely useless to the plot? That woman had so much potential. Either give us a proper development, or cut off their characters completely.