The Chōjin, or Overfiend, is a primordial deity bridging human, demon, and beast-man realms. Prophecy decrees its rebirth every 3,000 years to unify these worlds, though interpretations vary: the anime envisions merging three realms into harmony, while the manga narrows its focus to two. In both, Tatsuo Nagumo serves as the Chōjin’s human vessel, his transformation entwined with becoming the Demon of Destruction—a harbinger of annihilation to clear the path for renewal. This devastation precedes the birth of the Chōjin’s prophesied offspring, conceived with Akemi Itō, destined to forge a utopian future. The third OVA disrupts this cycle when realms collapse prematurely, forcing Akemi to birth the Chōjin amid chaos. Its early emergence draws the Lord of Chaos (Kyō-Ō) as its antithesis, while guardians Amano Jyaku and Megumi defend the fledgling deity against hybrid demon-beast hordes and Caesar, a despot capitalizing on the upheaval. Manga lore casts the Chōjin as a latent god within Tatsuo, hunted by reptilian demons under Suikakujū. Amano Jyaku’s guardianship grows fraught as Megumi undermines his efforts, driven by conflicting loyalties. Across adaptations, the Chōjin’s journey balances divine mandate with brutal sacrifice—its rebirth demands manipulation, violence, and collateral suffering, framing its legacy as both salvation and ruin. The prophecy’s duality endures: destruction seeds hope, yet the cost of renewal stains its celestial purpose.