暴力规则(2016)

The most violent answer to school violence!
　　High school student Seong-jin commits suicide after being the victim of school violence for a long time. Three years later, one of his bullies Han Yeo-wool debuts as a celebrity. Seong-jin’s brother, Seong-hyeon blames himself for not recognizing the pain his brother went though and finds a comment on Han Yeo-wool’s news report that Seong-jin didn’t commit suicide but was instead killed by Yeo-wool.
　　Seong-hyeon sets out to find the truth and he heads for destruction.()