Hazama Itsuro, a former police officer turned private detective, investigates the theft of cybernetic components tied to Professor Tani’s laboratory—a case that culminates in his fatal confrontation with a drug-augmented cyborg. Resurrected by Tani through consciousness transfer into a synthetic body replacing the vanished 8 Man, Hazama gains superhuman speed, strength, and shapeshifting capabilities. His unresolved vendetta against Tony Gleck, the corrupt officer who murdered his sister, fuels volatile emotional fractures that destabilize his android safeguards, triggering sporadic violent episodes that clash with his crime-fighting objectives.

Posing as his original self, he navigates dual roles as detective and cybernetic enforcer. His relationship with Sachiko Yokogawa, linked to the original 8 Man, strains under secrets: he masks injuries via shapeshifting to preserve his human facade while concealing his transformation.

Adapting to synthetic existence, Hazama grapples with existential uncertainty over his residual humanity and the ethics of his escalating brutality. A confrontation with Daigo’s syndicate—which employs cybernetic enhancements reliant on destabilizing drugs—mirrors his own dependence on specialized serums to sustain functionality. During an operation against a cybernetically enhanced football team, his unchecked aggression draws scrutiny, exposing cracks in his emotional discipline.

His arc closes with unresolved tensions between human history and mechanized present, interrogating identity erosion and the psychological cost of merging consciousness with artificial systems.