Webas the highest ranking members of the demon slayer corps, every hashira has perfected their breathing technique, but how does each one work? Webthe hashira, or pillars, stand out as the elite warriors of the demon slayer corps, each specializing in a unique breathing technique. While it would be a dream. Webany shå nen anime is incomplete without its own group of elite warriors, and in the demon slayer world, this role is played by the nine hashira. as expected, these fighters stand. Webas we enter the hashira training arc, it's time we look at what it means to be a legendary swordsman in demon slayer and who the hashira are.