The Chinese County at the End of the Universe

In AD 4276, the human scientific research ship "Far Country" passed through the last observable galaxy and reached the boundary of the universe. The crew thought there would be eternal darkness, but they received a Chinese broadcast in the darkness: "As we enter Guixu County, please slow down your interstellar aircraft. Foreign civilizations please register at the toll station." Beyond the boundaries of the universe, there is an ordinary Chinese county town. There are schools, hospitals, food markets, residential buildings and old buses in the county. The residents look like humans, speak Chinese with a dialect accent, and even know the history of the earth. They claim that the earth is not the origin of human civilization, but a "civilization cultivation vehicle" that accidentally left the county 13.7 Billion years ago. Now that the universe is coming to an end, it's time for the lost civilization to go home. However, Qi Ye, the captain of the scientific expedition team, found his own file in the household registration system of the local police station: Name: Qi Ye Birthplace: Guixu County Third Breeding Station Time of leaving home: 13.7 Billion years ago Current status: Away from home Relationship with the universe: pilot The problem is, Qi Ye is obviously only 34 years old.