They do not seek to profit from contracts; instead, they kill simply for the thrill of it, scavenging weapons and technology from fresh battlefields to stockpile or resell on the black market.
They are highly organized pirates and marauders, deserters from national armies or military corporations, war criminals, and bandits who observe neither honor nor the rules of war.
"Just because you have the ability to summon and tame monsters, doesn't mean you always should, Ruby!!!"
With the wonderful @eirgallant
Art by @other_grim