A half-breed tomboy girl who is the daughter of the werewolf, Volg Wildman and an unnamed human woman, raised by her brother (named "Lobo Wildman" in anime) under the ideals of being an honorable werewolf clan. When Riza confronts Hime over killing her brother, she learns her brother died honorably and that the fight was orchestrated by Prince Duken using her to force her brother to attack Hime. Thus, Riza offers her services to Hime in the hopes of avenging her brother should Duken attack Hime.