In the Ourten Galaxy, there was the technologically advanced Ourten Research Institute and the special Ourten Warriors.
As early as 3100, the Ourten Galaxy had already caught the attention of the Compound-Eyed Observers, who dispatched several batches of Prism Ships in waves of hundreds to eradicate them.
However, the seemingly invincible Prism Ships encountered setbacks in the Ourten Galaxy.
It wasn't that the Prism Ships were destroyed, just that the eradication process was less smooth than expected.
Ourten Warriors weren't merely fearless, but could maximize their fighter's performance, combined with the advanced weapons developed by the Ourten Research Institute, which dragged the Prism Ships into stagnation.
Twenty-one years passed, and more than two thousand Prism Ships had only just broken through the second defense line of the Ourten Galaxy, with five more lines inside.
It was unknown where the limit of the Ourten Galaxy's production capacity lay.