Humanity continued to kill each other even in the space travel area. While it is now possible terraforming made it possible to acquire new planets, the discovery of a new species changed the fate of mankind forever. As if their minds had aligned they ceased to quarrel and all of humanity decided to ally. Today, after more than 200 years of combat, the conflict is coming to an end. It was then that the planet of Kai'O, considered one of the most peaceful, plunged into an unprecedented crisis.