On earth, a catastrophe known as the "Honkai" has plagued mankind throughout history. The Honkai was created alongside civilization, and creatures known as the "Honkai Beasts," Deadwalkers, as well as a paranormal humanoid―The Herrscher―were born within it. To fight the Honkai invasion, mankind created an organization, called the Schicksal. This organization was assembled by mankind as a means of resistance against the Honkai. Its creation also marked the beginning of a war, an eternal battle where no side has claimed victory. The fighting has continued to this day... Up until year 2013, when the 3rd Honkai War broke out in eastern Nagazora, 3 young girls survived the incident. After being rescued by the Schicksal Far East Branch, these girls were found to hold immense powers that may very well help the human race survive the Honkai onslaught. With their powers being put to the test, humankinds fate rests within their hands.