Networks span the globe, and the evolution of the information network has reached its peak. In this era, two developed worlds exist: "the real world" and "wired," the virtual network realm. Toru Soma is a member of Steppen Wolf, a hacking group that operates freely within the network world. Their final mission involves attacking the UN forces' database. During this operation, he loses his friend and team leader, Yuya Nonomura. Toru is arrested by the military. To secure his release, he is compelled to work for an anti-hacker organization: the First Squad of the UN Security Force Information Administration Bureau. While working for them, he searches for the person who killed his friend, while the other members also have their own reasons for fighting. Daily three-way conflicts persist among the terrorist group, the security enterprise, and the army. The various events occurring during these fights appear independent at first glance, but they converge on a single event as if drawn by some force. Based on the game by GIGA.