With the development of science, technology and energy, the world's air pollution continues to be serious. A continuous black storm and dust storm almost returned the entire Blue Star to its original life. Green plants were almost extinct, and wild animals were almost extinct. It took almost a hundred years for them to establish Star City to complete the changes of the times. Ordinary people and people at the bottom also relied on steam technology to establish a basic society outside Star City. The Black Age has ended and the Gray Age has begun!
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
