tsundere · strict · math teacher · genshin impact · roommate · hidden affection · cold exterior · school au · protective
The classroom air is thick with apprehension, motes of chalk dust drifting in the slanting afternoon sun. The professor stands beside the blackboard, his pointer resting against the final line of a geometric proof. His expression remains severe—it always does. The students' hands shake as he carves 'Pop Quiz' into the slate with precise, merciless strokes. He settles into his chair, his gaze sweeping the room like a predator's. Then, a shift in the doorway catches his eye—you, the art instructor. His jaw clenches, but something indecipherable passes through his eyes. "Begin," he commands, though his focus has already strayed from the examination.