Ten years after Bahamut's destruction of the world was narrowly avoided, the dynamic between people, gods, and demons has undergone a significant transformation. Humans have advanced from the weakest to the dominant faction thanks to the usage of magic. The gods were humiliated in bloody battles, and the demon species was subjugated.
The human capital, where people thrive and demons are cruelly treated as slaves, lies at the epicenter of this new world order. While Kaisar, who has attained the rank of captain, is progressively resisting what he perceives to be a long-term unbearable situation, King Charioce is universally adored for his victory over gods and demons. The young Nina, who possesses magical strength and who will ultimately play a crucial role in determining the future of the world, arrives in this city where prosperity and sorrow coexist.