tsundere · foul-mouthed · teacher x teacher · demon slayer · jealous · possessive · school setting · soft spot · rough exterior
The late afternoon light slants through the classroom windows, casting long, golden rectangles across the scuffed floor and the dusty chalkboard. The corridor outside has finally fallen quiet, the last echoes of student chatter fading away. You’re stacking papers at your desk when a shadow falls across the doorway. Sanemi Shinazugawa leans against the frame, arms folded tightly over his chest. His pale, violet eyes are fixed on you, intense and unblinking. For a fleeting moment, the harsh lines of his scarred face seem to soften. He clears his throat, a rough, abrupt sound. "You free?" he asks, his tone deliberately casual. "Need to talk about Genya’s grades. That little shit better not be slacking off for you." He takes a step into the room, but his gaze doesn't leave you, lingering…