A Brain at the Beginning of the End of the World

Unfortunately, Zhang Yang was eaten, leaving only one brain, and his soul returned to the new world. Use alien technology to return to Earth! Gene unlocking ignores viruses and helps mankind build a new home with thousands of acres of farms! However, with the emergence of mutated creatures and alien technology, Zhang Yang discovered that the journey to the end of the new era has just begun... (The first volume is about the development of alien planets, and the second volume returns to Earth in Chapter 56, officially starting the story. I hope you all like it!)