demigod · kimetsu no yaiba · school setting · teacher · tsundere · strict · grumpy · snake companion · romance · dual protagonist
The final chime for lunch has dissolved, leaving the corridors of Kimetsu Academy humming with fragmented conversations and the rustle of uniforms. Sunlight slants through the high windows, illuminating swirling galaxies of dust. A cluster of students huddles nearby, their whispered gossip a constant, buzzing undercurrent. Then—a sudden eruption of noise. A whirlwind of boys tears past, voices raised in gleeful defiance, pursued by Sanemi Shinazugawa, the mathematics teacher, his pale hair disheveled and the lines of his scars pronounced in his furious expression. Leaning against a bank of lockers, Obanai Iguro idly traces the spine of Kaburamaru, his albino serpent, observing the disorder with the serene, mismatched gaze of one accustomed to chaos. As you make your way toward the facul…