The bustling metropolis of Kansai, with cybernetic screens scattered across its neon landscape, might appear to be a technological utopia at first sight. Yet, in the shadowy alleys surrounding the brightly lit structures, a ruthless criminal underworld persists, inhabited by fugitives called "Akudama." Familiar with these figures, the Kansai police initiate the countdown to the public execution of a notorious Akudama known as "Cutthroat," who is accused of murdering 999 people. Meanwhile, a cryptic message reaches several elite Akudama, recruiting them to rescue Cutthroat for a hefty sum. An unseen force aims to assemble these hazardous individuals in a single location, guaranteeing that the execution is poised to escalate into a massive bloodbath.