Webwithin the demon slayer world, the hashiras' closest equivalent are definitely the twelve kizuki/demon moons, the most powerful demons serving under. Webkyojuro rengoku vs akaza was a battle that took place outside the destroyed mugen train. It focuses on the battle between the flame hashira kyojuro rengoku against upper. Webthe demon slayer corps plunge into infinity castle to defeat muzan. However, the remaining hashiras and the demon slayers who survived tanjiro's final selection are. Webin the expansive universe of “demon slayer: Kimetsu no yaiba,” the hashira stand out as some of the most revered and powerful characters. Webthe hashira's final stand in the infinity castle arc. In the infinity castle arc, the hashira step into their most critical and dangerous roles yet. As the final battle. Webthe demon slayer manga concluded some time ago, so the ultimate fate of each hashira has already been established, even as the anime soldiers on.