Riful was an unranked warrior of Isley's generation (the first generation) and Claymore No. 1 of the first all-female generation. She was the youngest warrior in the Organization's annals to reach the pinnacle of her abilities and Awaken. She then became the Abyssal One of the West, also known as "Riful of the West" and "Empress Riful." She lived in the western region of Lautrec with her consort, Dauf.