This article is about a/an ally in B-Fighter Kabuto. Professor Osanai. Professor Masaru Osanai (小山内 勝, Osanai Masaru?) is the Japan branch chief of Cosmo Academia. He served as a counselor to the B-Fighters at Cosmo Academia. See Also Flabber - American counterpart in Beetleborgs Metallix. See comparison page. Retrieved from "https://metalheroes.fandom.com/wiki/Professor_Masaru_Osanai?oldid=44246" Categories: B-Fighter Kabuto Allies Mentors Community content is available under CC-BY-SA unless otherwise noted.