Location from Demon Slayer by Koyoharu Gotouge
A series of brutal training circuits run by each Hashira — the Corps' last-resort boot camp before the final battle, where every surviving slayer is pushed past their limits.
Hashira Training was implemented as a desperate measure before the final confrontation with Muzan — a recognition that the rank-and-file slayers needed to be dramatically stronger to survive what was coming. Every Corps member rotates through each Hashira's personal training regimen, each designed to build a specific capability. The training arcs serve a dual narrative purpose: they're simultaneously the last peaceful interlude before the finale and the mechanism by which the entire Corps levels up. Slayers arrive as competent fighters and leave as borderline superhuman. The social dynamics are revealing — seeing each Hashira as a teacher shows their personalities from a different angle. Sanemi's training is essentially him attacking students. Gyomei's makes people cry (more than usual).
Not a single location but a rotation through each Hashira's personal training estate. Each reflects their style: Tengen's features endurance obstacle courses, Muichiro's involves high-speed reaction drills, Mitsuri's focuses on flexibility, Obanai's involves binding and precision exercises, Sanemi's is pure combat sparring (borderline assault), and Gyomei's is a mountain of boulder-pushing, waterfall meditation, and heavy-object training. The grounds are littered with exhausted, crying slayers at every stage.
Also known as: Hashira Training, Pillar Training