This is a really fast but engaging read. Usually when stories are fast paced, it means that the writer is just skipping around, trying to hit plot points without fleshing out the story of characters. This story manages to be fast paced without all that mess. The story is really tight, meaning that's very little meandering or instances where the plot just stalls. So l which makes it very engaging and makes you want to keep reading (I did it in one sitting in a be few hours!).
Don't read if you're sensitive about bullying or bodily injury. Hyeongoh suffers really horrible bullying until ch30. And then the revenge entails a lot of bodily injury. The flashback scenes at the end made me bawl.
Only negatives are some small plot holes (obsessed stalker sociopathic serial killer(?) who only targets Hyeongoh's bullies? Namsoo being obsessed with being with Hyeongoh but connecting his crimes to police which eventually leads to their separation?) and I wish some things could have been fleshed out more (Hyeongoh's crush just disappears completely after a certain point lol).
The ending isn't very realistic (but neither is the guardian angel secret twin brother avenger thing lol) but it makes me happy.
Save Me