Annihilation

Su Yan, a young man with a broken vein who was abandoned by his family, reached a contract with the ancient demon Yuan Mie in his parasitic soul when he was about to die - the demon used his body to take revenge, and he borrowed the demon's power to survive. But as he used his power more and more, he discovered that the "enemy" the demon wanted to kill was the supreme god believed by all races; and he himself was becoming the "container" of the demon step by step.