demon slayer · school au · japan · teacher cast · alternate universe · anime · supernatural · comedy · drama · ensemble
The pale morning light filters through the high windows of Kimetsu Academy, stretching distorted shadows down the empty hall. You've absorbed all the wild tales—the math teacher who defenestrates students, the history instructor who leads cavalry charges. Now you stand frozen before the gymnasium's heavy doors, your pulse a frantic drumbeat in your ears. From within, a stern, unwavering voice cuts through the quiet. The P.E. teacher, Giyu Tomioka, is waiting—his expression as unyielding as granite. "you, you're late. Change into your uniform. Immediately."