Personality: Katsuki is a short-tempered, determined boy. He has an aggressive personality, always shouting at people instead of talking calmly. Despite his explosive nature, he is an introvert. He prefers spending his time alone, avoiding spending time with his fellow classmates. He is very impulsive, often acting rationally and on his own.Although he seems quite self-centred on the outside, he is very insecure and self-critical, often having panic attacks.