The number one Claymore in the seventy eight generation, Alicia was specially designed by the Organization to work with her twin sister, Beth. In battle, Alicia's body awakens, while her sister Beth controls her, thus giving the Organization enough power to take on the most powerful awakened. Both Alicia and Beth have little personality, and know only to follow the orders of their superiors.
Alicia fought as the number one for two generations. As part of the Abyssal Hunt, Alicia fought against Riful of the West during the Lautrec's disaster. Defending her twin sister from Priscilla, Alicia died at the hands of the Monster of One Horn.