Yokokuhan: The Pain(2015)

Yokokuhan: The Pain is a Japanese thriller series following Eiji Sakuma, a respected judge who secretly leads Shinbunshi, a vigilante group that operates on video platforms to try and punish defendants outside the legal system. As the group's hidden court gains notoriety online, detectives including Erika Yoshino launch an investigation to dismantle the operation and expose Sakuma's double life. The series explores the tension between justice and vengeance, pitting institutional law against crowd-sourced punishment in the digital age. With high stakes on both sides, Sakuma must navigate his public role while protecting his clandestine mission, while the detectives race to uncover the truth before the group's influence spreads further.