There are countless races in this world, and the two largest ones are humans and the rest of the demon races sometimes rely on them, sometimes competing with each other. When there is no possibility of peace between the two major races, this chaotic period is known as the war of hundreds of races. In the first half of the war, Fu Congjun led it, once rampant on the ground, but as the war became more and more persistent, the situation of the war changed. Humans overwhelmed the demon race in numbers with their proud fertility. The demon race, whose single combat power was far superior to humans, finally the hunter turned into a large piece of land occupied by prey. The human race occupied the entire Bahamut continent. The higher civilization was reproduced. The demon race led the subordinate race to retreat into the underground maze that maintained the survival of the demon race.