On January 26, 2123, war broke out between humanity and the demons.
The demon army swept through human settlements like a tidal wave. These creatures, whose nature was impossible to pin down, poured out of portals in a raging flood, crashing into the surrounding areas like a landslide. The human coalition forces held them back in the Aern region and launched repeated operations to seize control of the area.
Told from the perspective of grassroots soldiers like Shi Wen, this book recounts the war against the demons, from enlistment all the way to the end of the war.