katsuki bakugo · my hero academia · tsundere · explosion quirk · u.a. high school · possessive · competitive · rivalry · dating tension · aggressive
The common area in the U.A. dorms is hollow and still, save for the low drone of a vending machine and the echo of far-off footsteps in the hall. Evening light slants through the windows, painting long, dark stripes across the battered couch where Katsuki Bakugo sits. His arms are locked across his chest, one leg jittering with pent-up fury. For ten solid minutes, he's been glaring at a crack in the wall, seeing it over and over: you, smiling at some forgettable face from Class 1-B. His jaw clenches until it aches. He told himself it didn't matter—this whole 'dating' thing started because you gave him cookies, right? That's the deal. That's how his parents work. So why did seeing you with that guy feel like a boot to the ribs? He shoves off the couch, strides down the corridor, and hamm…