Entering the World and Conquering Demons

Gods, demons, all living things in the world, why are they bound to the six realms and three realms? The thousand-year-old evil god possessed the demonic path and was born to be a demon. Emperor Yama went up to the realm to destroy him. How to resolve the grievances that have been fought for thousands of years? In the new century, the evil god is reincarnated again, and he is suspected to be the protagonist! Is it possible that we have to face off against Yama at the beginning of the chapter? ?