Defensive ELF Reaction and Protection Services

The Defensive ELF Reaction and Protection Services, commonly abbreviated as DERPS, are a collection of special U.N. agencies established shortly after The Elfing in the setting of Cosmic Emanation Denmegator. They utilize giant humanoid mecha called Pursuit Cuirass to defend humanity against the ELF menace.

Agencies
The DERPS consist of several bureaus that handle different aspects of the ELF threat. Sometimes their methods and operations don't match up in their goal of handling the Elves and defending humanity.

Special Action Unit
The most well known section is the Special Action Unit (SAU) and its signature mecha, the SAUPC-01 Denmegator. Also known as 'Strike Force SAU', since their mission is to actively pursue and jordaslize Elves to eliminate them completely. The other agencies are jealous of them due to most of the 'new toys' being given to them before all of the others. Despite this, SAU is the smallest agency among the DERPS at the beginning of the story, due to the low success rate of the D-Body pursuit operations.

Gulbarretor
The 'Gold Bar Tower' maintains the static defenses and early warning systems around the globe. They are responsible for the development and maintenance of the Ferge Barriers and possess the most number of Gatecrashers as armaments. In terms of membership and funding, Gulbarretor is the largest agency in the DERPS. It maintains two Pursuit Cuirass recently transferred over from SAU at the start of the story : Gun-Saint and Sword-Saint. At the beginning of the story, a third is being developed specifically for their stratagem of defensive warfare.

ANIMA
A mysterious international research agency that studies the Elves and develops countermeasures and weapons for the DERPS. Not known to many is that ANIMA had existed even before the establishment of the U.N., and are something of a secret cult and conspiracy. ANIMA also collects Uddex Cotartos Fragments and is responsible for the proliferation of the metaphysical technology used to combat Elves.