Heizou has burgundy hair with a dark highlight, light olive green eyes, and a mole below each eye. He's free-spirited and unruly, but cheerful and lively. In Heizou's youth, he was rebellious and disliked the following rules. Heizou's view of the term "detective" mostly stems from his belief that one should be evil's natural enemy, as the damage had already been done despite any attempt to cover it.