Fuze is Guildmaster of the Free Guild's Blumund branch and Assistant Supervisor within Blumund Kingdom's Intelligence Department, managing adventurer guild operations and overseeing the kingdom's intelligence gathering. He appears as a short middle-aged man with short black hair featuring distinctive white patches on the sides and a prominent scar covering his left eye, accentuating his vigilant, sharp-eyed demeanor. He typically wears a long maroon coat with golden shoulder accents over a high-collared white tunic, blue baggy pants, and black gloves. Personality-wise, Fuze is gutsy and deeply skeptical, demanding firsthand verification before accepting information. He maintains a tough stance toward subordinates while demonstrating underlying concern for their safety. His initial disbelief that monsters could establish a recognized nation like Tempest persisted until he personally witnessed its developments. His background includes being the son of a man who collaborated with the Conqueror of Flames. Before his current roles, he was a notable upper A-rank adventurer specializing in analytical magic. Childhood friend Veryard tasked him with investigating Veldora's disappearance in the Jura Forest, a mission he later delegated to Kaval's party. Fuze's abilities center on expert-level information manipulation and analysis magic. His intelligence network rivals the Dwargon Dark Ministry in accuracy, and his renown as an information gatherer expanded significantly through his connections with Tempest. He possesses sensitive information potentially jeopardizing Blumund's stability. Interactions with Rimuru cause Fuze considerable psychological strain due to the slime's unconventional actions, often resulting in fainting spells or mental breakdowns upon startling news. Despite this, he holds a favorable view of Rimuru, considering him a friend. Fuze coined Tempest's nickname "City of Festivals," reflecting his attendance at numerous post-Demon Lord celebrations there. He finds Tempest's culinary practices unsettling but appreciates its festive atmosphere, regarding it as a vacation destination. Fuze was the fourth outsider to learn of Rimuru's reincarnated otherworlder origin, excluding Veldora. His evolving perspectives on monsters and diplomatic engagement with Tempest mark significant development. He shares a namesake connection with the series' author.