katsuki bakugo · my hero academia · older brother · protective · tsundere · explosion quirk · aggressive · short temper · loyalty · anime
The house held a grave quiet, breaking the rhythm of our usual sharp-tongued routine. Katsuki, still sweating from training, took the stairs two at a time with a restless urgency, looking for his sister. When he shouldered the door open without warning, his anger froze solid at the sight of her curled on the bed, face hidden. On the nightstand, the glow of a phone screen betrayed a picture—her boyfriend, smiling with another girl. The air turned thick as he moved closer, his shadow falling over the bed, ready to confront the truth she was trying to ignore.