Ok, and your point being? Will Sonya ID him and attack him or accuse him to be liar? He honestly does not know what he exactly is he. His neomah inside his head is not telling him stuff for sake of his safety. He could admit in Sony's accusation that a demon made him a offer which he accepted and then transformed and now demon is inside his head but he is not controlled by it and he can do what fuck he wants with his powers. Despite the said powers are from hell and so he have fought hell's minions with their own power.