I Am in the Human World, Recasting the Three Realms as the Heavenly Emperor

(Urban fantasy, not cool writing, no harem, not invincible, not brainless, slow pace, please don't disturb me.) The heaven collapsed, the three realms were in chaos, and the Nine Netherworld invaded. When ghosts and monsters appear in the world, where will people go? When myths and legends come, how should we believe in them? When alien gods roar and enslave all living beings, how should we face them? Chen Feng: As long as I am in the world, I will make all gods bow!