The same incidents in which various sites from companies to individuals are hacked occur frequently. Keita was immediately entrusted with the investigation, and Kirihara, who was unscrupulous, was assigned to support it. Two people who identified the place of the crime and headed to the scene, or two people who could not find a person who seems to be the criminal. However, Keita witnesses three elementary school students with suspicious behavior, and when he makes a mark of one of them ...