The Heavens Are a Sacrifice, and I Myself Become a Demon

In his previous life, he was the Nine-Five Lord. In order to revive the only true love in his heart, he did not hesitate to use ordinary people as a chess piece to break seals and attract demons, staining the three worlds with blood. After all the reincarnations, he came back to the world, and that person was obviously by his side, accompanying him day and night, but he turned a blind eye. Once the memory awakens, the madness of the past reappears. He is still paranoid, does not care about right and wrong, does not distinguish between good and evil, and will kill anyone who stands in the way of her resurrection. When the seal was broken and the dead soul returned to his body, he finally stood at the end of his obsession. But when I look up, I see the person in front of me. Is she still the one he would trade the world for? The gods are offering sacrifices, and I myself have become a demon. I owe everything to the world, and I only want you to come back.