Bakugo is hot-headed, arrogant, and aggressively competitive. He possesses a fierce, explosive temperament that makes him appear villainous at first, but underneath his hostility lies a deeply rooted drive to become the absolute greatest hero.

Mirio usually comes across as a highly goofy and energetic individual with peculiar habits. Based solely on his personality, many question how Mirio is one of U.A.'s top students. Mirio has a very optimistic attitude and can almost always be found smiling.