I Open an Underworld in a Strange World

Feng Du had a dream on his eighteenth birthday. In the dream, he transformed into the ruler of the underworld and held the power of death.   And this dream lasted for three years, day and night. Until this dream gradually became reality... From then on, he walked in the night:   Contain the wandering ghosts in the world, suppress the troublesome red-clothed Li Gui, canonize the natural disaster god, and resist the invasion of world destruction...   He wants to rebuild the lost order of the underworld in this era when gods and ghosts coexist - canonizing the black and white impermanence, appointing the ten palaces of Yama, and awakening the sleeping reincarnation.   "My name is Fengdu, but... You should call me Emperor Fengdu of Beiyin."   [Strange recovery + reconstruction of the underworld + divine canonization + suspenseful battle of wits]