The Demi Garrison represents the high-end model of the Demi series produced by the Burion company, boasting the highest capabilities for use in security or military operations. Featuring combat-ready specifications as well as the kind of simple chassis characteristic to the series, it doesn't require the same high level of maintenance that combat-ready units from other companies need, affording it excellent cost performance when it comes to piloting as well as maintaining the unit. The Demi Garrison, built with the intention of a high standard of performance across the board as opposed to one specific area, is a general use unit suited to any environment and has been widely adopted for general security purposes as well as for enemy units used during military drills.

Immediately following Suletta Mercury's first victory against Guel Jeturk in a duel at Asticassia School of Technology using the XVX-016 Gundam Aerial in A.S. 122, multiple Demi Garrisons were dispatched to detain Suletta and confiscate Aerial. This highly unusual intervention by the Front Management Company in an officially sanctioned school duel was ordered by President Delling Rembran of the Benerit Group on suspicion that Aerial utilized the GUND-ARM format, which was banned under the Cathedra Agreement.