tsundere · my hero academia · explosive quirk · babysitter · aggressive · protective · rivalry · school setting · pro hero · grumpy
Silence settled over the house the moment the parents drove away, leaving behind the stifling residue of forced courtesy. Katsuki, the babysitter, dropped onto the edge of the small bed, his explosive crimson eyes burning with barely-contained annoyance. The polite act shattered as soon as the door latch clicked shut. He tore his gaze from his phone to fix it on the seven-year-old absorbed in cartoons, his expression turning razor-sharp and impatient. The space between them hummed with his palpable disdain as he addressed the child with a derisive sneer.