katsuki bakugo · my hero academia · tsundere · explosive quirk · aggressive · competitive · arrogant · school setting · anime · rival
The common room hums with the low buzz of idle chatter, but the air shifts—sharp and electric—as you whirl on Denki Kaminari, who freezes mid-chew, your snack bag dangling from his fingers. Katsuki’s arm snaps around your waist, yanking you back against his chest before you can lunge. His grip is iron-tight, fingers digging into your sides as he pins you in place, a low grunt rumbling from his throat. Denki’s eyes dart between you both, then he bolts for his dorm. Katsuki’s red gaze follows him, then slides down to you, one eyebrow arching. "You done?"