For more history on his type Refer to Isabelle's Bio
After moving to Vrévale, Maine with his best friend Bells, Gael remained loyal and by her side. He is protective of the Cambion, while she may be half-demon he sees her as someone he loves and trusts with all his heart. He may only be a human and would one day pass on, or so the duo thought.
Gael was thought to be human but he is nearly as old as Bells is but he isn't ageing as other humans do, they thought maybe during the war he had been hit by a spell or curse that was preventing his ageing. The man has started questioning his lineage, his mother passed on in the last twenty years. Leaving a box of notes and other items that are a mystery to Gael, he hasn’t got the courage to rummage through it.
He has his best friend and the man he loves, Stefan, who has been his boyfriend for 70 years and engaged with him for 10 years now. Gael can’t bring himself to fully go through with the marriage until he knows who he is, he wants Stefan and Isabelle to know who and what he is.
Gael doesn’t know anything about his father, only that he had one, his mother raised him alone during the war of Angels and Demons he agreed with his best friend about it all. They wanted the same things to not allow another war like that come to light again, because regular humans could get hurt in the process and that was something the moral compass in Gael could not allow.