Dominikov operates as a bounty hunter partnered with Falis, functioning as her equal in their alliance rather than a subordinate. He balances combat expertise with delivering vital exposition, clarifying supernatural events like the soul-transfer incident involving Falis and Alita.

In the manga, he is portrayed as a shinigami—a death god—steeped in spiritual and historical lore, while the anime reinterprets him as a cyborg forged from the forgotten advanced technology of an ancient civilization. His signature weapon, a formidable scythe, serves as his primary tool in battle.

Tasked with safeguarding the Forland Kingdom, he aids in countering threats from Dr. Akamashi and Cecilia, leveraging his knowledge to expose Cecilia’s identity as a relic of ancient cybernetics during pivotal clashes. His arc culminates in a sacrificial act during the activation of a world-preserving mechanism, which obliterates all traces of lost technology—including his own existence—alongside others tied to the ancient advancements.

Official narratives maintain his role primarily as a combatant and informational anchor, offering no deeper personal history or evolution. His design adapts across mediums: the anime iteration incorporates mechanical traits like goggles and a scarf to underscore his cyborg origins.