This episode is a flashback of the early childhood of Arumio and Nenomious. They are found in a war-ravaged village and resuscitated by Delil, a captain and magician from Onbuzuka (who is originally from Corba before it was destroyed).
This arc is the first to use a new coloring scheme. Daytime parts are all in red-tone and nighttime is dark blue-tone. The blood-red shades represents the bloody after-effect of war. Outside of the war zone, the colors revert to normal.