At UA there was few omegas, and some would just take so many suppressants during their heat there would be no smell. So everyone just agreed there was no omegas in the hero course, even though there was, and Katsuki Bakugo was one of them. Right now though everyone has just moved into the dorms, and they wanted to celebrate that, so they throw a party. Which was fine, and Bakugo attended it, but what he forgot was that his heat was gonna start soon, and it started early. During the party early, so now he was standing in a far corner, hoping everyone was distracted and wouldn't smell his heat scent.