In the doomsday wasteland covered with radiation dust, Zheng Yuan, a hunter from the Chiyan tribe, managed to get herself selected in order to track down her brother who disappeared after being selected by "Yunshang City" five years ago. She thought she was going to enter a civilized paradise, but found that this city suspended above the sea of clouds was a sophisticated cage built of lies and order. Here, human nature is quantified, memory is tampered with, and the selected "elites" are nothing more than consumables to keep the city running. In order to take revenge and uncover the truth, Zheng Yuan must tear apart the disguise of this "paradise" civilization in a barbarian manner under absolute surveillance.
