Katsuki's peculiarity allows him to secrete nitroglycerin-like sweat from his palms and set it on fire on command, which allows him to create strong explosions. The more Katsuki sweats, the stronger his explosions become. If Katsuki abuses this power, his forearms will start to hurt. Katsuki is well versed in the application of his quirk, which was recognized as the Best Jeans the best professional hero ... (Not all information.)