Raizo Mine is a middle-aged man approximately 40 years old, with short black hair swept backward, black eyes, and a beard. His usual attire includes a brown suit, light blue shirt, and tie. He stands at a medium height similar to Inspector Nakamori. As father to Sayaka Mine and husband to Shizuka Mine, he is the son of Fuji Mine, also known as Goinkyo. Raizo runs his own company and serves as a kendo master overseeing a dojo. His background features a longstanding rivalry with Kenjuro Kurogane, rooted in their shared history of swordsmanship. During the *Detective Conan* crossover OVA *Conan vs. Kid vs. Yaiba*, Raizo hires detective Kogoro Mouri to protect his ancestral sword from Kaitou Kid. He displays visible relief and gratitude when the sword is recovered, personally thanking Shinichi Kudo—disguised as Conan—after Kid's defeat. When the frog demon Gerozaemon Geroda invades his property, Raizo confronts him directly. He also observes interactions between his wife Shizuka, daughter Sayaka, and Kid during the thief's seduction attempts. Raizo upholds traditional values through his dedication to safeguarding family heirlooms and strict adherence to kendo principles. He demonstrates combative readiness when facing perceived threats, exemplified by his immediate challenge to Geroda.