In the year 2717 AD, mankind has entered a new era. The land is covered with urban forests made of new materials, airways are criss-crossing, robots have replaced all labor forces, and human development is flourishing.
However, behind this prosperity, there is endless darkness: the rapid development of industry and mechanization has left few resources on the earth, environmental pollution has increased sharply, and there is no longer a star, a tree, or a flower on the earth. Human beings who realized this began to take remedial measures. The Supreme Government divides humans into three classes: Star Weaver, Sumeru, and Mustard Seed.
Concept: About the desolate planet and father