The Hashira Training (柱稽古はしら けいこ, Hashira keiko?, lit. Pillars training) is a training program held at the Demon Slayer Corps Headquarters. It was conducted by the and undertaken by numerous lower-ranked Demon slayers. Each of the Hashira oversees a different component of the training program for lower-ranking Demon Slayers, which includes basic stamina training, flexibility training, quick movement training, sword skill training, pounding training, and muscle reinforcement training.