The main character, Siwoo Lee, lost his parents to a murderer 10 years ago. Finally, he meets Jack, ...
Like the title, MC killing the killers that's connected to an organization related to his parents death. Revenge focused, sometimes it's a bit unserious and comical, like for plot drive so many plot holes or just someone just standing around when he can kill them just to talk and wait until they get killed. Lots of plot armors around MC classmate and girl (classmate sister), It's a bit nonsense, overall still bearable, not good but not bad. MC also illogically protective to his classmates gangst