Asaka closely resembles Asana Mutsuba. She is a slim pale skinned girl with mauve eyes and grey hair that passes her shoulders. Similarly to Asana, Asaka dresses in a style based on equestrian riders, wearing a short white coat with silver buttons, a white collared shirt with a red cravat and a gold brooch in the shape of the Mutsuba Heavy Machinery logo, a black waistcoat, white riding pants, white gloves, and black heeled boots.