Akira is a teenage girl with a voluptuous build. She has short hair whose coloration varies between black and dark brown. Her eyes have tiny pupils and no visible iris. While her eyes are usually colored black, they are also depicted as amber-colored. Akira has a noticeable upper bust, a feature acknowledged by several characters, and an angular face.

Outside, she usually wears a school uniform consisting of a long-sleeved white shirt, a striped tie, and a grey skirt.