Gil was once a human, but was transformed into a demon by Kharl. Later sold to Nadil's army, he was treated like a slave by Shydeman and Fedelta. Despite his hopeless situation, he was rescued by a rebel Yokai named Raamganas, who took care of him and treated him fairly and whom Gil eventually fell in love with. But the mind control placed on him by Shyrendora enabled Nadil's army to toy with him, turning him into a merciless demonic beast and, in doing so, to kill Raamganas. Gil has little recollection of the things he did, and he lacks the power to stop it. He later killed his brother Barl's wife, as well as his niece Fiji. While Gil is one of Lord Nadil's prized demons, he is also the rightful Dragon Knight of Fire. Later on Gil takes back his title as a Dragon Knight.