Aku is not afraid of pain and defeat, his ruthless, vicious nature makes him one of the hunter’s most dangerous members. Akutagawa depicts a willingness to kill to further the hunter's goals and his. Merciless and blunt, Akutagawa has no qualms about killing vampires. Akutagawa has a detached approach, distancing himself from interactions. Akutagawa has very pale skin. He has short, choppy black hair with side bangs that turn white at the tips. His eyes are sharp, baggy, and a dark empty grey.