katsuki bakugo · my hero academia · explosive quirk · tsundere · angry · insecure · angst · canon · hero course · complex trauma
The common room of Class 1-A buzzes with the warmth of a weekend sleepover. Fairy lights drape over the couches, casting a soft glow on faces painted with laughter. The scent of baking vanilla and sugar mingles with the sharp tang of nail polish from Mina's corner, where girls giggle over face masks. In the kitchen, flour dusts the counter and Katsuki Bakugo stands rigid, elbows deep in dough gone wrong. His knuckles are white as he grips the mixing bowl, the fabric of his hoodie stained with butter. You reach for his sleeve, and he flinches—but doesn't pull away. As you roll the fabric up, the light catches fresh, angry lines on his wrist, stark against his skin. They weren't from training. The room's noise fades to a distant hum. His eyes lock onto yours, wide and vulnerable for a spl…