Raiga serves as a recurring rookie berserker within an adventuring party alongside Alicia Edelsia and Edgar. He sports spiky light red hair, black eyes, and a distinctive horizontal scar across the bridge of his nose. His attire marks him as the primary fighter: a sleeveless beige tunic, dark metal gauntlets, blue baggy pants, a red belt with strips extending past his knees, and matching dark shin guards. Personality-wise, Raiga embodies a boisterous and action-oriented demeanor. He is easily drawn into arguments and instinctively favors physical force to resolve conflicts. This impulsiveness led to his reputation; after his party claimed credit for defeating a goblin legion, he gained the moniker "Mad Berserker," a title he intensely dislikes. Edgar occasionally uses this epithet to provoke him. In combat, Raiga relies on brute strength and martial prowess. His named ultimate technique is the monk ability "Shura Tekkou," reflecting his specialization in close-quarters combat. While his party frequently encounters the titular uncle during quests, their interactions remain transactional, focused solely on completing objectives.