Metal Face, a lieutenant in the Machine Empire, embraced cybernetic modifications to replace his organic body, viewing humanity’s physical form as fragile and inferior. His transformation into a cyborg amplified his strength and resilience, reflecting his conviction that technological ascendance could overcome mortal limitations. The Cyber Lance, a mechanized weapon fused to his left arm, serves as his primary armament, later upgraded to the Neo Cyber Lance after repairs prompted by his defeat at Teppei Takamiya’s hands.

Years before the central narrative, he sustained critical injuries traversing a minefield to rescue a young Karen—a sacrifice that forced his cybernetic conversion and shaped his fraught allegiance to the Empire. This event seeded his eventual moral reckoning. As the Empire’s ambitions clash with the uncontrollable evolution of the ultimate B’t, Rafaello, Metal Face’s loyalty erodes, fueling doubts about his faction’s ethics.

His arc culminates during Rafaello’s final onslaught, where he executes a second sacrificial act, channeling his body’s energy to destroy the entity at the cost of his life. This redemption contrasts starkly with his earlier role as an imperial enforcer, framing his evolution from dutiful soldier to selfless adversary of annihilation.

Interactions with figures like Demon General Meimu expose his internal struggle between obligation and conscience, further complicating his alliances. These dynamics solidify his trajectory as a conflicted warrior whose ideals gradually align with those fighting to avert global catastrophe, closing his journey with a legacy of defiance against both external threats and his own past.