Michel Belmont is a detective operating in Tokyo’s Kabukicho district, affiliated with a team that accepts cases through the underground bar Pipe Cat. He sports short gray-white hair, light blue eyes, an orange coat layered over a brown suit, a red tie, and black dress shoes. Known for his laid-back demeanor, he strategically selects cases with high success rates and lucrative financial rewards, particularly those promising bonuses.

His team investigates mysteries tied to serial murders echoing the methods of Jack the Ripper. Though less prominent than his peers in active investigations, Michel supports collective efforts with pragmatic efficiency. Episodes like *Michel and the Stupid Book* depict his involvement in case-solving, though specifics of his contributions remain undisclosed.

Official media, including the main series, OVAs, and supplementary materials, offer no explicit backstory, personal history, or development for Michel. The six-episode OVA series delves into backgrounds of characters like Moriarty but leaves Michel’s origins, relationships, and internal motivations unexplored.