Adrien is a human-demonic hybrid with a manifestation or consequence by a cult ritual. Due to his father doing the forbidden ritual on him when he was much younger, not only did his mother perish but Adrien had been tied to this symbiotic bond called Nyxthar. Who at times likes to test how far it can make Adrien lose control completely. But so far it’s lost the permanent power and only lasts so long even though he is feared by all who know him.