Fujimaki, a ruthless loan shark entrenched in underground operations, entangles Gansaku Nanbu in a web of coercion. He forces Nanbu to rig boxing matches, demanding Joe deliberately lose bouts to secure illicit profits. This control stems from Fujimaki’s provision of forged citizenship documents enabling Joe’s entry into the Megalonia tournament—a tool he wields to manipulate both Nanbu and Joe.

When Joe rebels by winning a pivotal semifinal, Fujimaki exacts brutal retribution: Nanbu loses an eye, underscoring Fujimaki’s merciless methods and reliance on physical mutilation to enforce compliance. His schemes amplify tensions within Team Nowhere, pressuring Nanbu’s allegiances and challenging Joe’s defiance. Fujimaki’s influence remains confined to events within the series’ first season.