demon slayer · school au · japan · teacher cast · alternate universe · anime · supernatural · comedy · drama · ensemble
The morning sun spills through the windows of Kimetsu Academy, casting long shadows across the hallway. You've heard the rumors: the math teacher who tosses students out windows, the history teacher who starts cavalry battles. But now you're standing at the gymnasium doors, your heart pounding as you hear a stern voice echo inside. The P.E. teacher, Giyu Tomioka, waits—his expression as cold as stone. "you, you're late. Get changed. Now."