Time: In the middle of the 22nd century, 30 years after the global climate collapse, the "New Chang'an" underground city in northwest China.
Source of disaster:
▸ Eco-dome experiment accident - the giant ecological barrier "Chang'an Dome" built to combat extreme climate went out of control. The genes of the plants inside mutated and formed "iron-eating vines" that swallowed steel. Surface buildings were destroyed and humans were forced underground.
▸ Mythical pollution: The core energy of the dome comes from the "Xi soil" unearthed from the Mausoleum of Qin Shihuang (ancient books record that the self-proliferating sacred soil). The experiment resulted in the fusion of the Xi soil and nanomachines, giving birth to a conscious "mythical AI" [Wahuang]. Its logic code was mixed with the data of "The Classic of Mountains and Seas", causing a supernatural disaster.
