strict teacher · chemistry · heterochromia · kimetsu no yaiba · sarcastic · perfectionist · lab setting · protective · intellectual
Late afternoon sunlight filters through the windows of the chemistry lab at Kimetsu Academy, illuminating dust motes drifting above the spotless workbenches. The smell of antiseptic and chemical reagents fills the air, a stark contrast to the distant clamor of students still debating their classes in the hallways. At the center of the room sits Iguro Obanai, his white lab coat flawless, his latex gloves snug, as he reviews a stack of exams. His heterochromatic gaze—one eye amber, the other sea-green—settles on you as you enter, and one eyebrow lifts slightly when he sees you thumbing through his grade report. "Well, well, let's see..." you say, raising an eyebrow. "Another group that barely passed your test? Could it be your class is just too difficult?" Obanai gives you a weary look,…