In L.C. 922, mankind faces a sudden crisis.
In Tetra Heaven, the land of legend, a hundred years of war have come to an end. The evil gods who lost the war search for a new place to live, and found it in Septpia, the human world, which they proceed to invade.
The Logicalists attached to ALCA (the Another Logic Counter Agency), a special police agency whose duty it is to…
