The tale follows Joe Shimamura and his cyborg cohorts as they fight against the Bresudo. This group of individuals boasts inhuman abilities and intelligence, manipulating human affairs since antiquity with unknown ambitions that cast a menacing pall over the earth. Contrary to popular opinion, American journalist Lucie Davenport believes in the Bresudo and travels to Texas to connect with a particular household, where she intersects with the cyborgs. Following the creation of the UN Guardian troops, the cyborgs have been released from their obligation to safeguard humans and now lead tranquil lifestyles.