The Lich Without a Soul Vessel

A lich without a soul vessel has only one life. Evan learns that lesson the moment he opens his eyes. Reborn in the body of the continent's most wanted necromancer, he finds himself hunted by the Creationist Church and the Holy Inquisition. He has no desire to continue a dead man's vendetta. He only wants to survive. But hidden within Nicholas Andrew's memories lies something impossible— a cultivation technique unlike any magic this world has ever known. If immortality can no longer be inherited... then he'll forge his own. — Description from novelcodex.org