In 2035, after the "Blood Moon" incident, alien spores landed on the earth along with meteorites. These spores can infect all machinery and organisms, causing:
· 80% of global electronic equipment fails
· Some human beings have mutated into "puppets" who have lost their minds.
· Animals and plants mutate into extremely aggressive "alienated creatures"
· The combination of uninfected machinery and biology creates a semi-mechanical life form
Survival status: Humanity retreats to six survivor bases. Outside the bases is a "grey zone" full of dangers. Humanity has discovered that a few people can "resonate" with machines, become mechanics, and drive mechas to fight against mutated creatures.
