The Gran Chaos Empire is the largest nation on the continent and the leader of the Mankind Declaration, a united front against the demons.
Amidonia uses part of the text of that declaration which states, "The moving of national borders by force will be deemed inadmissible," as their shield, borrowing the might of the Empire to demand the return of their capital, Van, but Souma refuses.
And so, negotiations begin with the Empire's envoy, Jeanne, the younger sister of the Empress.
"We do want to enter an alliance with the Empire. A secret one."
With the tempest of war behind them, the goals of the different nations send sparks flying in the seventh volume of this transferred-to-another-world administrative fantasy series!