Deus Ex Machina Industries (デウス・エクス・マキナ・インダストリー, Deusu Ekusu Makina Indasutorī?) also known by the abbreviation of DEM, is a corporation based in England that is also one of the largest in the world.

Aside from <Ratatoskr>'s matrix, it is the only known industry that is able to manufacture Realizer Units for the Self Defense Forces and the Realizer units currently equipped by the world's military and police forces. It can be said that all Realizer Units are made by DEM.

Due to their enthusiasm in hunting down the Spirits, they are considered economic rivals with <Asgard Electronics>, whom Ratatoskr is affiliated with.

Adeptus Call SignsEdit

DEM also has magicians who are able to use the CR-Units. However, it is said that their handling experience exceeds those of special forces of different countries by a long shot.[1] There is a hierarchy of wizards within them called as the <Adeptus> and only the strongest wizards of DEM can be called as one. They are ranked in numbers with 1 being the strongest while the lowest <Adeptus> number is currently unknown. The following are known to have <Adeptus> number;

  • Ellen Mira Mathers, <Adeptus> 1
  • Artemisa Bell Ashcroft, <Adeptus> 2
  • Mana Takamiya, Former <Adeptus> 2
  • Jessica Bailey, Former <Adeptus> 3
  • 9 unknown Wizards, <Adeptus> 4-12 [2]


The country's police, organizations, and armies, which are supplied with the Realizers by the DEM all have supervisors or maintenance officials deployed by the DEM company.[3] The organization has multiple branches throughout the world, including Japan, though the main headquarters is in England.

Known DEM MembersEdit

Light NovelEdit

  • Ellen Mira Mathers
  • Artemisia Bell Ashcroft
  • Mildred F. Fujimura
  • James A. Paddington
  • Andrew Carthy
  • Minerva Liddell
  • Edgar F. Carroll

Former Members Edit

Light NovelEdit

  • Isaac Ray Pelham Westcott
  • Mana Takamiya
  • Jessica Bailey
  • Origami Tobiichi
  • Marina Arusu

Date AST LikeEdit

  • Minerva Liddell (DEM Wizard) (Deceased)
  • Edgar F. Carroll (Head of Project Ashcroft) (Deceased)

Date A Live: Ars InstallEdit

Trivia Edit

  • The DEM's enthusiasm of the Realizers has even pushed them to the point of experimenting on children such as Mana Takamiya to increase their combat potential, despite knowing that doing so would shorten their lifespan.
    • The same thing was done to Jessica during the events of Volume 7. However, her life span was limited to a day.
  • The name Deus Ex Machina comes from the Latin phrase: God From the Machine.
  • It seems that only the top brass of the DEM have heard rumors about the organization known as <Ratatoskr>, and have been ordered to eliminate them if they existed.
    • <Ratatoskr> was likewise created by Elliot, after he left DEM, to stop Westcott and his ambitions.


  1. Light Novel Volume 3, Chapter 5
  2. Light Novel Volume 6, Chapter 4
  3. Light Novel Volume 5, Chapter 1
  4. A character appeared during the events of Nia Galge