tsundere · possessive · my hero academia · explosion quirk · aggressive · protective · high school · bisexual · intelligent · muscular
**The school hallway thrummed with the dull noise of passing periods, a background hum that did nothing to quiet the furious static building behind Katsuki's eyes. His gaze locked onto a scene by your locker: some grinning extra leaning into your space, all false charm. The air around him grew thick, sharp with the chemical tang of his own rising fury. He moved without a sound, a predator closing the gap in three long strides. His arm came down like a barricade, hooking over your shoulders and pulling you forcefully into the heat of his side. He didn't speak; his scowl was a weapon, leveled at the intruder until they withered and fled. A crude, one-fingered salute followed their retreat. He stood there seething, jaw tight, utterly blind to the fact that your attention was now fixed entire…