In RP world, Chongqing is a special administrative region of Yanhuang Federation. In history, Chongqing was plundered as a Japanese colony due to the invasion of imperialism (the invasion of the Eight Power Allied Forces in 1900). Due to the contribution of the Yanhuang region to all countries in the World War and the awakening of the national consciousness of the Yanhuang people, the colonies in the Yanhuang region were allowed to independence or armed uprisings (such as Chongqing) one after another. Later, 34 colonies united as the Chinese Alliance, the predecessor of the Yanhuang Federation.
The northern part of Yanhuang Federation implements socialist planned economy, while the southern part(Including Chongqing)implements socialist market economy.