We don't know how far away from Earth we are, or how long ago humans first left Earth. Incalculable knowledge has been lost to war, plagues, and alien occupations, and now Earth is merely an ancient legend. But humanity survives in the form of its distant colony worlds.
From the ashes, a new pocket of civilizations arose in this unusually habitable corner of the Kagami Galaxy called the Kikyo Sector. Peace is carefully maintained in besieged nations like the Yamatai Star Empire whose overextended military forces continue to constantly fight off against alien invasions and insurrections while frontier regions struggle to survive against scarcity and lawlessness.
Star Army is a shared, living world that is always growing. Your writing can add to the setting, and your RP may be affected by events in the setting. Because you'll roleplay with other people, expect to be surprised sometimes! Have fun and be brave.