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The Andromeda Galaxy, 2.5 Million light-years away from the Milky Way, is approaching the Milky Way at a speed of 110 kilometers per second. In about 2.5 To 4 billion years, the Milky Way and Andromeda will collide and merge. In this collision, the fate of the Earth and the Sun will be unpredictable. They may be ejected from the Milky Way galaxy or they may be merged into the Andromeda Galaxy. Likewise, the planets in the Andromeda Galaxy will face the same fate. The creatures in the Andromeda Galaxy made predictions and plans in advance to deal with this big collision. But they need the help of humans in the solar system, so the Andromeda Galaxy sends a packet of information to Earth, waiting for humans to unpack it. A young man named Xiaojun obtained the information package from the Andromeda Galaxy and successfully interpreted the Andromeda Galaxy's request. Xiaojun followed the guidance of the Andromeda Galaxy information package and successfully created the Andromeda Galaxy life form "Alien A". Since then, humans have been in contact with the Andromeda Galaxy, and through "Alien A", they have embarked on a journey to save the fate of the two galaxies.