Riko is a young slim girl with long dark hair that is braided in the back and extends past her shoulders, with her bangs extending down and covering the middle of her forehead. She is always seen with her light hairband on the top of her head and normally wore her school uniform. The uniform was designed with striped cuffs and collars on a white long sleeved shirt with a black skirt, black stockings, and black shoes. She has also worn a black dress with white shoes.