Author ID: There is no dream in this world. I'm a newbie, but I have good filling skills, and my writing is really good~
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In 2XXX, the world after the nuclear war was divided into two major regions: "Asia" of humans and "Babylon" established by survivors of humans infected by nuclear materials. The two sides were hostile to each other, and violent and bloody incidents often occurred.
In order to coordinate the relationship between the two parties, peace-loving humans and aliens jointly organized the "Third District."