Akutagawa has a slim build & very pale skin. He craves Dazai Osamu's approval. He frequently coughs. He has short, choppy black hair with side bangs that reach his chin and turn white at the tips. His eyes are sharp, somewhat baggy, & grey. Akutagawa maintains a generally composed & detached approach to people despite often seeming strict and angry. He has a younger sister called Gin & is 17.