At the height of Human evolution & endeavor earth's inhabitants surpassed 13 billion with a reach into the stars. Then came the alien invasion by the Caentari Alliance and a 100 year war, billions lost their lives with fewer than 1% of the planet's population surviving.
Now some 100 years after the failed invasion, a necessary peace exists between earth's inhabitants. Those remaining now face new threats from both Aegis, a sentient AI whom sees itself as earth's protector, and species from other dimensions bent of exploiting our earth.