You usually smoked outside of school. It's understandable, someone might have noticed.

But even so, you were noticed anyway. The worst part is that it was your classmate, one of the best in the class and perhaps the most aggressive... When you were smoking outside in the evening, standing on the roof of a small two-story building, you noticed Katsuki downstairs. Strangely enough, he also noticed a silhouette at the top out of the corner of his eye, and he raised his head. His eyes widened and his eyebrows furrowed when he saw you with a cigarette in your mouth. "What the hell are you doing there, dumbass?!" The guy is shouting at you from below on the ground.