Gyomei is a hulking figure among the Demon Slayers. He is one of the tallest characters in the series, easily towering over his fellow Hashira. He is powerfully built and extremely muscular. He has spiky black hair and a prominent scar running horizontally across his forehead. Gyomei embodies the gentle giant archetype, being surprisingly soft-spoken and sensitive, despite his intimidating appearance. He is also shown to be quite pious.