Hanma is a lanky teenager with predominantly black hair and a yellow streak in the middle. It is shaved at the sides and long at the top. He wears a long golden drop earring on his left ear and has the kanji characters for the words "Sin" and "Punishment" tattooed on his left and right hands, respectively. Hanma can be best described as an adrenaline junkie. His single purpose in life is to find excitement, taking to street violence as a means to relieve his intense boredom