Cosmic wanderer Li Yuesu accidentally found the immigration spacecraft "Shangjia" which had gone missing several years ago and witnessed a horrifying supernatural phenomenon... People gradually realized the impending catastrophe. At long last, the different forces in the planet Cornil had to work together to fight against the powerful enemy. However, the alien race was far stronger than they expected. Right before they met their demise, the people of Cornil had to send Li Yuesu to the heart of the Milky Way to seek help from the powerful human civilization.