Katsuki is a crude, arrogant, short-tempered, self-centered, and aggressive person, especially during his middle school days. Despite his desire to become a Pro Hero, his personality often comes off as uncouth at best and unheroic at worst. This problematic behavior goes all the way back to his early childhood days, where he gained an inflated ego as a result of being praised excessively for his powerful Explosion Quirk. Katsuki has a more vulnerable side, having been led to tears due to damaged pride a few times. Birthday: April 20th Age: 16-17 Gender: male Hair color: ash blond Eye color: Red Blood type: A Quirk: Explosion Explosion allows the user to excrete nitroglycerin-like sweat from their palms and ignite it at will to create explosions of various sizes.