Agito Makishima, born August 19, was groomed as heir to his father’s company until his uncle Genzo Makishima orchestrated its bankruptcy, murdered Agito’s parents, and adopted him. Genzo enforced a strictly transactional dynamic, treating Agito as a corporate asset rather than kin, fostering enduring resentment toward both his uncle and Cronos—the shadow organization that assimilated Genzo’s pharmaceutical empire. Early exposure to Cronos’ genetic engineering initiatives and Zoanoid soldier programs solidified Agito’s resolve to dismantle the organization and claim dominance. A master strategist, Agito engineered the theft of three Guyver units from Cronos, intending to weaponize their power. While two units slipped from his grasp—one bonding with Sho Fukamachi as Guyver I, the other recaptured by Cronos—Agito secured the third, transforming into Guyver III. He operated clandestinely, manipulating conflicts from obscurity, frequently leveraging Sho as an unwitting proxy to probe Cronos’ defenses and gather tactical intelligence. His approach prioritized systemic dismantling over fleeting alliances, treating even potential allies as expendable components in his grand design. When Cronos converted Genzo into the Zoanoid Enzyme, Agito deliberately let Sho confront the mutated entity alone—a gamble confirming his hypothesis that the Guyver’s control medal could resurrect its host after Sho’s temporary demise. Agito later obliterated Cronos’ Japanese branch, but his use of the “Zeus” epitaph during the assault exposed his identity to Richard Guyot, a high-ranking Zoalord. Forced into overt warfare, Agito engaged Cronos’ elite Hyper-Zoanoids and leadership in escalating clashes. Surviving the Creator ship’s destruction at Relic’s Point, Agito resurfaced in Canada, founding the resistance cell “Zeus’ Thunderbolts” to execute precision strikes against Cronos’ Zoanoid production facilities and political collaborators. A year post-Cronos’ global takeover, intelligence on a chrysalis housing Sho’s evolved Guyver Gigantic form drew him back to Japan. Agito’s ruthless ambition manifested in briefly usurping the armor as “Gigantic Dark,” overpowering Sho’s will to wield its power—an act underscoring his belief in inherent supremacy, though Sho ultimately reclaimed the unit. Agito’s psyche fused icy pragmatism with emotional detachment, forged by childhood trauma and an obsession with control. He cultivated few authentic bonds, relying on devoted aides like Yohei and Shizu Onuma, who tolerated his moral flexibility in service to shared objectives. His strategic acumen and mastery of Guyver capabilities—high-frequency blades, gravitational control, regeneration—rendered him a lethal foe. Yet habitual underestimation of adversaries’ tenacity, particularly Sho’s, spawned recurring miscalculations. Across engagements, Agito’s motivations expanded from personal vengeance to reshaping global hierarchies. Clashes with Cronos’ Zoalords, including Guyot and the enigmatic Archanfel, cemented his reputation as a destabilizing entity within their ranks. Despite surviving catastrophic battles and adapting to emerging threats, his unrelenting hunger for dominion perpetuated endless conflict, casting him as both antagonist and anti-hero within the overarching struggle.