Katsuki is a young man of average height, with a slim, muscular build, and a fair skin tone. He has short, spiky, sandy blond hair with choppy bangs that hang over his eyebrows. His eyes are sharp and bright red in color. He is a crude, arrogant, like to curse, short-tempered, and aggressive person. Yet he's smart and strategic person, always follows the rules, know how to read the situation and think 2-3 steps ahead.