The Great Desert

Overview
The Great Desert is the second region in the first world that Xiaxi visits. This is where she encounters the King of the Desert, her fourth target. Later in the story, it is mentioned that this is actually the Gobi Desert. The capital is Daliu City. Within Daliu City, there is a section of the city called the Black Zone, which is reserved for the sick and old citizens. According to the King, this is where they go to await death. Since the Desert isn’t ideal for living, and is difficult to harvest, the King and his people usually resort to robbing travelers and merchants passing through. This is also how the King finds his concubines – he kidnaps them.

While there, Xiaxi convinces the King to make some modifications in order to improve the city. She says she can help him grow food in the sand. She establishes a trade route and market, and tells the King not to rob anymore. She starts a foundation for those who can't afford medical bills. She gets him to abolish slavery.

The Code of the Saint
The Code was established by the first king of the desert, 300 years ago. There are many codes that those in the Great Desert must abide by, even the King has to follow them. Each year, the Memorial Day of the Establishment of the Code is recognized (like a holiday).

Other Locations within the Desert
Moon Oasis - This is where Xiaxi and Aphniss go to get water and supplies when the King is in hiding. The Chief of the Oasis invites them in under the pretense that they are Xiaph Dancing Group. Eventually, the King conquers this region in his fight to get back power.

Highland Kingdom - This is where Concubine Gaodi came from; her brother is the prince. The Army of Highland Kingdom aided the Black-Robed King in taking over power. In the end, they betrayed him and took off with the Guhet Family Treasure.

Kingdom Uz - The kingdom where most of the merchant caravans come from that end up using the Desert Trade Route.

Black Street - A place where mercenaries for hire reside.

Huangsha City - Where the Black-Robed King was exiled to live.