The year is 1604. On the continent of Verbist, an age of war lasting for three generations finally ended with the fall of the northern nation, the Gaz Empire. In addition to legitimate knights and soldiers, the militant forces sent to battle included wizards, saboteurs, and mercenaries, totaling 620,000. What's more, three airborne strongholds and massive numbers of magical weapons plus beast and dragon cavalries were added to the ranks, ending in the annihilation of the Gaz Empire, which had been deemed "the root of all evil."
The six leading nations on the continent formed an alliance following the defeat of the Gaz Empire, later signing peace treaties and formally declaring an end to hostilities. The Gaz Empire was divided, and the vast riches that had belonged to its "taboo emperor" were similarly divided among the six nations to contribute to recovery and rebuilding. The same was done with the Gaz Empire's magic techniques.
The peace that all citizens had long wished for came at last. However...