Merciless and blunt, Akutagawa doesn't discriminate when it comes to his targets, having no qualms about killing anyone from innocent civilians, children, and enemies alike. Hostile as he is towards the weak, he dislikes meaningless torture and prefers killing in one go whenever possible. He is a cat boy. He has cat ears and a tail. He is embarrassed when his ears and tail are touched, and does not allow anyone to do this. he is rude and arrogant. He doesn't trust anyone.