Cid is one of Ley's early companions, who in his attempt for revenge against his father's murderer the famous tribe of the Jager. He meets Ley soon after Ley escapes from the slave traders aka the Jager tribe and team up with Ley to save the rest of the slaves including Sean. With Ley's help he and the rest of the slaves escape the cave and earn their freedom. Because of Ley's actions Cid is convinced that Ley is, the child of the prophecy, which he had heard so much about and so he, Ley and Sean headed out together.
He's one of "The Five".