 If you liked
Koroshiya 1
|
 ...then you might like
Rinjin 13-gou
|
Main characters who are seemingly nice, shy and ordinary people, but in reality they're deranged sadistic killers out on a quest for revenge against those who tortured them in school.
report
Recommended by Revilenigma
Psychological problems makes the "good guy" to turn into a killer. As they slaughter the people blocking their way. The reasoning behind all is this is getting bullied at school in an extreme way that will make you disgusted to learn this past and understand (a little bit) why they turned out to be serial killers.