If you want to have murderous thoughts and to become a psychopath, read it. I don't even remember the number of times I thought in my head "just kill him and it's over". Fuck, all of them merit to die. I'm so angry at them it's incredible.
It's like a vengeance story but you are waiting forever and the vengeance never come and the darkness become even darker... You are angry, you hate the characters, you even hope they die but nothing happens. It's damn frustrating.
Aristotle was right about poetic justice : without the death of the bad guys, I'm feeling like I want to kill them myself lmao
More seriousily, this story lack an extremely important element : justice, and what comes with it : punishment, then mercy.