Exper Venom competes as a rival participant in the Expers game, a lethal real-life death match where 100 players battle to become the designated "main character." Equipped with an Exper Suit that enhances physical capabilities for combat, Venom focuses on eliminating opponents like the protagonist Hiroshi Zenno (Exper Zenon) to secure victory.

Bound by game rules requiring direct confrontations, Venom's actions intensify the lethal challenges confronting Exper Zenon throughout the narrative, positioning him among multiple antagonistic forces within the game's structure. No personal motivations or backstory extend beyond this role.

The Exper Suit grants Venom standardized abilities such as increased strength and durability, which he employs in combat. No unique powers, distinctive visual traits, or exclusive fighting techniques distinguish him.

Venom remains solely an obstacle within the game's framework, undergoing no individual development, evolution, or resolution. His presence is confined to the original OVA, with no appearances or further elaboration in spin-offs, sequels, or expanded universe materials.