The Rule of Violence (폭력의 법칙: 나쁜 피 두 번째 이야기) 8 years old

A highschool boy commits suicide after being bullied. 3 years passes, and a girl among the assailants becomes a celebrity. The victim’s elder brother happens to read a internet comment about her, which says she killed his brother. His revenge begins and it’s irreversible. Now you’ll see how a domino of violences ends unpredictably.