Fiamma of the Right leads God's Right Seat, an influential group positioned above the Pope within the Roman Catholic Church. His leadership is central to the organization's existence; God's Right Seat would collapse without him. He possesses fiery red hair and golden eyes, typically wearing a simple red suit while maintaining a calm and calculating demeanor. Born with the Holy Right, a power embodying the symbolism of the right hand in Christian lore, this ability manifests as a mirage-like hand resembling a malformed bird's talon extending from his right shoulder. The Holy Right automatically defends against threats regardless of Fiamma's awareness, reacting instantaneously to dangers like satellite lasers. It negates durability by delivering precisely the force needed to defeat any target, ignores concepts of distance and speed to strike instantly, and can erase targets from existence. Initially, distortion in the world's elemental balance limited its full power, while repeated use caused his right arm to disintegrate gradually. He later acquired Index Librorum Prohibitorum's John's Pen Controller to stabilize the arm and access her 103,000 grimoires, enabling spellcasting such as St. George's Sanctuary and Dragon's Breath. Fiamma orchestrated unrest across critical global regions, instigating World War III to further his ambitions. He manipulated the Roman Catholic Church and Russian Orthodox Church, betraying the Pope after criticizing his leadership. His plans involved capturing Kamijou Touma for the Imagine Breaker and targeting England to obtain Index's knowledge. He constructed the Star of Bethlehem, a flying fortress assembled from global religious structures, to execute a ritual to become "La Persona Superiore a Dio" (The One Above God). Achieving this state granted him phase manipulation, soul manipulation, and reality-warping capabilities, merging Heaven with Earth to recreate biblical miracles and rewrite universal laws. His power scaled to universe-level, controlling Heaven as a distinct universe. He was defeated when Touma disrupted his ritual, destroying the Star of Bethlehem. Fiamma survived via an escape pod and later lost his arm in an encounter with Aleister Crowley before being rescued by Ollerus, a former Magic God candidate. Personality-wise, Fiamma exhibits extreme arrogance, referring to himself with the Japanese pronoun "Ore-sama" (The Glorious Me). He views humanity as consumed by negative emotions and believes only he can save the world through absolute power. Though not inherently evil, his self-centered pursuit of salvation leads him to sacrifice others, including Church members and civilians. After defeat, his outlook shifts: recognizing his failure to value individual lives, he dedicates himself to protecting the world Touma safeguarded. This change manifests in his alliance with Ollerus to thwart Magic God Othinus, whose resurgence stemmed from Fiamma's war.