In the distant future, the various continental plates on the earth have re-merged into an entire continent, forming a highly developed federal country - the "Yijing Federation". It consists of eight cities named after the Bagua. Each city has its own unique technological and cultural characteristics, and together they build a harmonious and diverse future society. The center of the Federation is a super city called "Zhongyuan", which gathers the elites of various cities. Scrolls discovered from ancient ruins record the history and technology of ancient countries thousands of years ago. These ancient countries are: Yingjili, Hungruosi, Yindu, Aiji, America, etc. Two years ago (AD 4024), Jian Tianxing interpreted a prophecy that affected the entire federation at the Yijing Academy in Zhongyuan, heralding a major change that might subvert the order of the Eight Cities.
During a hexagram interpretation, Jian Tianxing accidentally triggered the prophecy of the Qian hexagram, which mentioned an "apocalypse" who would change the destiny of the world.
Shen Siwei and Chen Moheng left Sunda and continued to investigate other cities to understand the characteristics and problems of each city and look for clues about the "Apocalypse" in the prophecy.
