Ghost Gate had indeed transformed into a different sight.
Within a year, the ghost messengers who had learned the Wanling Heavenly Dao had created this city from scratch, and the quality of the city was almost indistinguishable from that of Wanling Country two hundred years later.
The newly built Palace of Darkness had also completely changed its appearance.
However, the Underworld must retain its awe-inspiring authority, so the design of the city incorporated many terrifying elements, such as skulls seen everywhere and wailing evil spirits strung up.
Overall, Sun Wukong was very satisfied with the design of the Underworld.
After the Book of Life and Death was returned by Houtu, Sun Wukong immediately had new Underworld regulations drafted.
The new regulations didn't greatly change the punishment of spirits from before, but bold reforms were made in personnel matters.