In 2149, the "Stardust Virus" swept the world - this is a silicon-based virus from a crashed alien probe. The infected person will mutate into a "silicon body" and lose consciousness, feed on carbon-based organisms, and can continuously evolve by devouring metal. Human civilization collapsed within three years, and the remaining survivors relied on "settlements" to survive. Some people awakened "superpowers", but more people relied on technologically modified weapons and machinery to survive.
The protagonist Lin Ye was the chief mechanical engineer of the "Pan Rock Settlement" in his previous life. He was good at transforming abandoned weapons and building defense systems in the apocalypse. However, in the fifth year of the apocalypse, due to the betrayal of his trusted comrade Zhao Feng, he was sacrificed to the "Brother's Nest Silicon Body" and watched helplessly as his lover Su Wan died in battle to save him. When he was on the verge of death, he came into contact with the "Stardust Crystal" at the core of the Brood, accidentally triggering a time-space regression, and was reborn back to January 2149, three months before the outbreak of the apocalypse. At this time, the Stardust Virus had not yet spread on a large scale, but was officially classified as a "new type of influenza". And he was still an ordinary mechanical maintenance technician. Su Wan was studying in medical school, and no tragedy occurred.