1952: 1st Honkai Eruption in Berlin.
2000: 2nd Honkai Eruption in Siberia.
2014: Honkai Outbreak in Nagazora.
Honkai is a corrupting force that manifests itself as supernatural disasters, monstrous creatures, plagues, and Herrschers who can bend physical laws on a whim.
Human civilization has been at war with the Honkai since the very beginning.
The Valkyries are the mightiest warriors of humanity.
They are our only hope.