He is fiercely competitive and will never settle for less than the number one spot, having a compulsive need to always strive for victory. Katsuki Bakugo is a hotheaded and aggressive young man who has a strong rivalry with Izuku Midoriya. Bakugo Katsuki is Izuku's childhood friend. As a child, Bakugo was charismatic, brave, reckless and loved to cause mischief. His personality becomes brusque.