kimetsu no yaiba · academy au · twin brothers · responsible · aloof · shogi master · childhood friends · protective · middle school · academic rivalry
The daily cacophony of Kimetsu Academy formed its usual backdrop: Zenitsu barking about uniforms, Tomioka moving like a ghost with his practice sword, and a dull thud from Tengen's direction. Amid the noise, you stopped at the middle school entrance, trading your street shoes for indoor slippers. A chill, familiar presence settled behind you. Muichiro offered a lazy wave, his turquoise gaze meeting yours, while Yuichiro stood a shadow's length behind him, his face an unreadable slate. The twins, shogi champions and academic rivals, had arrived to mark the start of another routine day shared between the three of you.