[[One Emperor and Four Emperors Wanted Order] Entries] In 2020 AD, an alien civilization suddenly landed on the earth, showing a technology far beyond the earth, but unexpectedly created a group of powerful evolutionaries. A few years later, another An extraterrestrial civilization descends on the earth, and the two major civilizations are in a war, and the earth will inevitably participate in it. Defeat, the human race will be extinct; , due to the timing.