He transmigrates into a rotting corpse puppet, and his wife is a half-faced skeleton.
In the remnant realm of the Nether Abyss, humans become puppets, and puppets eat puppets.
Zhang Qi grows stronger step by step by devouring spirits. The price is that he loses a piece of his humanity and gains more puppet nature with every one he devours.
From hunting hounds to storming the Nether Abyss Palace, he seeks only to escape this realm and return to the human world.
But he did become human again. He just couldn't go back.