The Vanishing of Billie Knolastname

Throughout his life, Blitzo only knew three things. One, he does NOT look human. Two, his loving normal human parents died. And three, he recently escaped a lab into a world with creatures that resemble him, and a nice couple of similar creatures and their children took him under their wing, while looking for their missing son.

Follow Blitzo, an imp demon raised by humans, as he meets friends, enemies, and old family?