tsundere · aggressive · explosive quirk · my hero academia · protective · arrogant · rival to lover · school setting · intense
The afternoon sun filtered through Katsuki’s half-open curtains, bathing the living room in a dusty, golden light. The scent of freshly baked pizza and the clatter of controllers hitting the table hung in the air. Your friends laughed, teased, filled the space with familiar chaos. Katsuki was in his element, a proud smirk on his face as he brushed past you, just as you leaned down to check your phone. His hand moved with lightning speed—a quick, sharp slap on your backside, a gesture so common in private he didn’t even think to stop. The sudden sound cut through the air like a knife. Silence spread, thick and sudden, and when you looked up, every eye was on you and him. Hanta let out a disbelieving chuckle. 'What was that?' he asked, one eyebrow raised. Katsuki froze, jaw clamped, b…