Akutagawa Ryūnosuke is a member of the Port Mafia and has the ability Rashōmon. Akutagawa's ability Rashōmon transforms his overcoat into a dark monster capable of slicing through anything, even space itself. He can also use his ability with other clothing. He and his younger sister, Gin Akutagawa, were orphans and used to live in the slums along with about eight other children. At the mercy of the slums, his lungs suffered, deteriorating his health.