Kousuke Utsugi is a middle-aged man with black hair, black eyes, and a composed, authoritative presence, frequently occupying leadership roles such as a hospital director or head of covert organizations. His narrative function shifts across adaptations, reflecting divergent storylines.

In the 1971 manga and 2002 anime, he is Ryo Utsugi’s biological father and the commanding figure behind “D” (or “God’s Soul”), a secret religious group dedicated to thwarting demonic forces and resurrecting God. As its leader, he orchestrates assaults on Satanist factions, disrupting rituals to prevent the revival of Demon Lord Dante. His operations extend to unethical scientific ventures, including bio-chemical experimentation and the creation of bionic weapons masked as demonic beings, strategically deployed to vilify Satanists. This duality frames him as a conflicted antagonist, balancing paternal loyalty with uncompromising devotion to his cause.

The 2002 reboot and *Neo Mao Dante* reimagine him as Uriel, an archangel serving God’s will. This celestial identity transforms his antagonism from mortal extremism into divine mandate, positioning him as a direct agent of heavenly forces against demonic threats. Leading “God’s Soul,” he manipulates events to designate his daughter Aya as the vessel for Eve, a divine weapon in God’s arsenal. His calculated resolve fractures upon learning Ryo’s identity as Dante’s reincarnation and Aya’s fate, revealing cracks in his stoic exterior.

Consistently, Kousuke’s choices prioritize mission over family, intertwining scientific pragmatism with religious fervor. His evolution from a human antagonist to a metaphysical entity underscores thematic clashes between reason and zealotry, anchoring his role in the eternal conflict between divine and demonic powers. Adaptations progressively expand his narrative weight, preserving his centrality in the cosmic war while reshaping his identity across evolving lore.