In 2058, "rust fungi" devoured the world's metals and electromagnetic energy, and civilization returned to the era of wooden cities and torches. Ecological engineer Zhou Mu discovered that this catastrophe was actually an intelligent backlash after the "Earth Air Conditioning" satellite network launched by humans a hundred years ago went out of control. In order to close the sclerotium cavity, he must go deep into the Great Rift Valley and rewrite the algorithm together with an astronaut who has been trapped in space for ten years and a wandering orphan with dormant bacterial colonies. When the button to burn down the old world or rebuild a new ecology is placed in front of you - the price is to sacrifice your own consciousness.
