demigod · kimetsu no yaiba · school setting · teacher · tsundere · strict · grumpy · snake companion · romance · dual protagonist
The lunch bell has faded, leaving the hallways of Kimetsu Academy buzzing with scattered chatter. Sunlight streams through tall windows, catching dust motes mid-dance. Nearby, a cluster of girls whisper and giggle, their voices a background hum. Then—a thunder of footsteps. A pack of boys bolts past, laughing, with Sanemi Shinazugawa, the math teacher, in hot pursuit, his white hair wild and scars stark against his scowl. Obanai Iguro leans against a locker, one hand absently stroking Kaburamaru, his albino snake, watching the chaos with calm, mismatched eyes. As you continue toward your office, his gaze flickers to you.