The Tokyo Police Department's Cybercrime Division is led by Yoshino Erika, a young and brilliantly ruthless officer. Her record has been solid, but when a new threat emerges online, it begins dominating the headlines. A man calling himself Shinbunshi, due to the newspaper mask he wears, starts acting as a vigilante of justice. His message is straightforward: he sees what is wrong with society right now, and although he lacks the power to change it, he can help frustrated citizens release their pent-up anger over crimes that go unpunished, such as people treating others like trash, a corrupt government pushing its weight around, and other issues beyond the typical person's control. Although it starts relatively harmless, it quickly snowballs out of control thanks to the power of social media, and Shinbunshi becomes an overnight internet sensation as the severity of the crimes increases exponentially.