Three-body dark war ending

The three-body world and the earth have been destroyed by the dark forest. Survivors of human civilization, including warships that escaped from the doomsday campaign, went into space and continued to develop civilization. Cheng Xin and Guan Yifan entered the small universe. Cheng Xin broke away from the small universe in response to the declaration of the return of the universe, but kept 3 kilograms of mass in the small universe. Whether the universe is restarted or dead, Liu left the last suspense.