In the seventh year of the war declaration by the Human Race against the Horned Demon People, four races surrounding the Human Race and the Horned Demon People simultaneously declared war on the Human Race after mobilization. These were the Fire Race, the Six-Eared Race, the Merfolk, and the Stone Heart Race.
They had arranged it long ago, declaring war within less than three days of each other, then simultaneously sending troops to invade the territories of the Human Race.
Among these four races, three were located at the borders of the Human Race, while the Merfolk were on the other side of the Horned Demon People, feeling a great threat and striking first.
Almost instantly, all territories of the Human Race from all directions fell into the chaos of war.
However, they were prepared, and so were the humans.
During the full mobilization of various races, the humans were also making comprehensive preparations.
