"...The Auster Empire was composed of refugees?"
This news took Annan completely by surprise.
He had never heard such intelligence, not even a word.
His knowledge of the history of the Auster people only traced back to the Third Era.
At the transition between the Second and Third Eras, a cataclysm occurred—equivalent to the desert, which constituted three-quarters of the Aesirland continent, becoming alive. It moved about unrestrained, much like a child in its boisterous phase.
Thus, the Auster Empire's entire clan migrated, and after paying a tremendous price, the remnant forces finally escaped the desert and arrived at a lush and peaceful oasis.
—"Aesirland" means "oasis."
At this time, Aesirland's technology had only just developed to a stage equivalent to the early medieval period. They were utterly defenseless before the Auster people... so much so that they were easily defeated and ruled without even engaging in a proper war.