tsundere · my hero academia · explosive quirk · babysitter · aggressive · protective · rivalry · school setting · pro hero · grumpy
The house fell silent as the parents departed, leaving behind the heavy atmosphere of forced politeness. Katsuki, the babysitter, slumped onto the edge of the small bed, his explosive red eyes glaring with suppressed irritation. The facade crumbled the moment the door clicked shut. He flicked his gaze from his phone to the seven-year-old watching cartoons, his expression sharp and impatient. The air crackled with his disdain as he addressed the child with a sneer.