Hashira is the highest rank that Demon Slayers can obtain in the Demon Slayer Corps. Those who hold the position are regarded as the most powerful and skilled combatants in the entire organization, protecting humanity against more dangerous threats that cannot be handled by other Demon Slayers.Each Hashira is the master of a unique Breathing Style, some of which are even created by themselves. Tengen Uzui is the former sound Hashira, often calling himself flamboyant and flashy.