Timeline: In an imaginary modern world, the technological level is equivalent to that of the real 2020s, but the international landscape is different. The world is divided into seven superpowers, rather than the five permanent members of the United Nations.
Cause of the doomsday: In 2035, the "Ark Project", a secret genetic evolution experiment conducted by the world's top scientists, failed. The experiment aimed to create a "new human being" that can coexist harmoniously with nature, but unexpectedly released an ancient nanovirus code-named "Pandora". This virus can recombine biological DNA and turn infected people into "transformers" who attack normal humans only by instinct. At the same time, it accelerates environmental degradation and puts the earth into a "dark transformation period."
