The worldwide information network has reached its peak, creating two distinct worlds - the tangible "real world" and the virtual "wired" world. Soma Toru is a member of the hacking group Steppen Wolf, who roam freely in the network world. In their latest mission, they attack the UN forces database, resulting in the loss of Toru's friend and team leader, Nonomura Yuya. As a consequence, Toru is captured by the army and offered a deal for his release - to work for an anti-hacker organization known as the first squad of the UN Security Force Information Administration Bureau. With the goal of finding his friend's murderer, Toru embarks on his new mission while his colleagues also fight for their individual reasons. The daily battles between the terrorist group, security enterprise, and army continue with seemingly unrelated events, but eventually lead to a convergence towards a single event. This story is based on the game by GIGA.