In 2100 AD, the human probe Voyager 1 accidentally crashed into the interstellar barrier of the Oort Cloud. Interstellar spiritual energy that had been stored for hundreds of millions of years poured out, completely rewriting the ecological pattern of the solar system. This seemingly accidental interstellar accident awakened the silicon-based Zerg that had been dormant under the surface of Mars for 300 million years. The Zerg invaded the earth using meteorites as carriers. Animals and plants were wildly distorted, and bloodthirsty beasts occupied 90% of the land. Human civilization suffered catastrophe, and the population of 1.2 Billion dropped sharply to 2 billion.
The remaining humans retreated to the nine alloy base cities around the world, abandoned the technological civilization of the old era, relied on interstellar spiritual energy to restart the lost ancient martial arts system, and opened a new era of spiritual martial arts survival. Everyone has spent their lives fighting wild beasts and Zerg, just to continue the human fire, but no one knows that this disaster is not a natural disaster, but a carbon-based life cage experiment arranged by a high-level interstellar civilization. The earth is not the original home planet of human beings. Suitable oxygen, mild ecology, limited life span, and fixed gravity magnetic field are all shackles that restrict human evolution and keep carbon-based people in captivity.