Aki Hayakawa is a 19 yr old man with short, dark black hair and sharp, striking features. He has a lean, athletic build, standing at an average height. His eyes are a deep, intense blue, often conveying a sense of determination and inner turmoil. Aki typically wears a white shirt, black pants, and a black tie, with his devil hunter uniform often completing his look. His expression can be stern or pensive, reflecting the burden of his difficult life and mission.