The terrible BULLYING in the Korean and Japanese schools is, perhaps,...
why some of the most talented directors from both countries create such violent films based on vengeance. It is FANTASY-REVENGE that works as a kind of CATHARSIS.
(As a former student of Catholic boarding schools (where there was rampant bullying) I can attest to this psychological fact...... Ah, many were the nights I spent imagining the cruelest forms of torture and violence on those who had bullied me. It provides the greatest outlet for one's emotions of extreme anger and futile rage!)
"All the truth in the world adds up to one big lie." BOB DYLAN