In the near future, scientific technology has advanced exponentially. Human life is supported by robots and autonomous machines, which have become indispensable for everything from labor and medicine to public safety and infrastructure management. However, due to the limits of self-learning or unknown external interference, advanced AIs very rarely fall into a "berserk" state, deviating from their control. This is not merely a malfunction; it sometimes develops into a major disaster threatening human lives and urban functions. To deal with such situations, the Autonomous Machine Suppression Organization, NEXUS-0, was established. NEXUS-0 aims to "return the connection (NEXUS) between humans and machines to a state of '0' before danger occurs," and is publicly known as a technical accident response agency. In reality, however, it houses a small, elite task force responsible for the suppression, recovery, and complete destruction of berserk robots. Most citizens accept robot rampages as "rare accidents." Incidents are handled quickly, leaving almost no trace at the scene. Behind the scenes, the members of NEXUS-0 continue to guard the boundary between the ordinary and the extraordinary. Kareha Kuzuno is one of them.