Ragna Empire.
This was an extremely powerful military nation.
Like the neighboring Mitra Kingdom, it was established by the heroic efforts of once great Heroes and had existed much longer than Mitra Kingdom, with a far deeper heritage.
It had once decayed.
It had once been weak.
But with the test of time, it had successfully persevered and ultimately became the strongest nation in the Human Realm, regarded as the first superpower of the Human Race, with military capabilities even surpassing the Divinely favored Mitra Kingdom.
Had it not been for the fact that Mitra Kingdom was established by the strongest Hero who had successfully defeated the Demon King a thousand years ago and received much care from the Divine Race, perhaps, the Ragna Empire would have already conquered Mitra Kingdom and taken its land a long time ago.
