Astral bodies are the source of energy in galaxies. They will appear on any planet in any galaxy every few centuries. However, the astral bodies that were supposed to appear this time suddenly disappear. The last signal source is located on the earth in the Milky Way. The General Administration of the Galaxy and its various galaxy branch offices are short of energy.
Li Nan, a celestial body with a strong bond with the earth, went to the earth to investigate and find the celestial body.
When the stars living in the universe move in other planets, they do not use their main bodies but their sub-conscious bodies. When they leave, the sub-conscious bodies will dissipate and the memories on this planet will also disappear and enter the files of the Galaxy General Administration. When this star is about to die, all memories will be restored.
Concept: Galaxy science fiction