Thanks for you work, Artemesia. Looks like it was a right decision to have you hide yourself just in case. — Itsuka Shidou and everyone from Ratatoskr. Let me thank you too. Thanks to you, I'm able to get one step closer to my long-cherished wish. Let's meet again soon, Itsuka Shidou and all spirits. Do enjoy the rest of your peaceful days even though you only have a little left.
~ Isaac Westcott, after gaining the power of the Demon King, Beelzebub

The Demon Kings are are the inverse counterpart of Angels. They are also known sometimes as fallen angels, due to the fact that when a Spirit enters in Inverse Form, the true form of the Spirit is revealed they are more cruel and dark angels version. They are similar to the formats of weapons of angels, however, the texture and color of the weapons seen more and more powerful demonic.

They are also the counterpart of the Tree of Life as also as the Spirits in the Inverse Form, the tree that belongs to them is the Qliphoth Tree; The Qliphoth / Qlippoth / Qelippot or Kelipot are the representation of evil or impure spiritual forces in Jewish mysticism. The realm of evil is also termed 'Sitra Achra/Ahra' in Kabbalah text.

Known Demon Kings


Also know as Na'amah or Naamah, Nehemah is the Demon King of Dark Tohka, it is a demonic legendary creature, the mother of divination. As she became a demon is unclear.

The meaning of its / her name is argued among Hebrew scholars; it refers either to her / its virtuous nature ("pleasing" to God (YHVH)) or to a penchant for idolatry (singing "pleasant" songs to pagan idols).


Coming soon!


Beelzebub is the (former) Demon King of Dark Nia, and like Nia's angel, Rasiel, it is presented in a form of book, which can be used to acknowledge everything its master wanted, or warping an alternate reality of evil. The Qliphoth crystal of Beelzebub is currently holded by Isaac Ray Peram Westcott, making him to wield its power and becoming demonic.



  • The Demon Kings are named after the demons from the evil counterpart to the Sephirot Tree: the Qliphoth Tree.
    • Following this, the names of the Demon Kings in order according to their Angels counterpart should then be:
      1. Metatron—Satan (Origami's Demon King)
      2. Rasiel—Beelzebub (Nia & later Isaac's Demon King)
      3. Zafkiel—Lucifuge
      4. Zadkiel—Astaroth
      5. Camael—Asmodeus
      6. Raphael—Belphegor
      7. Haniel—Baal
      8. Michael—Adramelech
      9. Gabriel—Lilith
      10. Sandalphon—Nahemah (Tohka's Demon King)
Date A Live Villains
Tohka Yatogami · Yoshinon · Kurumi Tokisaki · Kurumi Tokisaki Clone · Kotori Itsuka · Miku Izayoi · Natsumi · Origami Tobiichi · Rinne Sonogami · First Spirit · Phantom · Nia Honjou
Spirits Inverse Form
Dark Tohka · Dark Origami · Dark Nia
Zadkiel · Sandalphon · Gabriel · Rafael · Haniel · Metatron · Camael · Zafkiel · Nehemah · Eden · Rasiel · Kerubiel
Demon Kings
Nehemah · Satan · Beelzebub
Deus.Ex.Machina Industries
Isaac Ray Peram Westcott · Ellen Mira Mathers · Roger Murdoch · James A. Paddington · Captain Reys · Jessica Bailey · Mildred F. Fujimura · Edgar F. Caroll · Russell · Arbatel Pilots · Ashcroft Assembly · Andrew Kersee Dunstan Francis Barbirolli · Material A · Artemisia Bell Ashcroft · Neryl Island Westcott Organization

DEM Industries Board of Members

Roger Murdoch · Russell · Simpson
Kotori Itsuka · Kyouhei Kannazuki
Anti Spirit Team
Ryouko Kusakabe · Origami Tobiichi · Mana Takamiya · Tomonara · Kagaya · Morie
Special Sorcery Service
Minerva Liddell · Artemisia Bell Ashcroft · Ashley Sinclair · Cecil O'Brien · Leonora Sears
Okamine Heavy Industries
Torataro Okamine
Japan Ground Self-Defense Force
Sansa Tsukamoto · General Kritani · Major · Minister of Defense Saeki
Izabell · Daisy · Charllote Meyers
Corrupted Shido Itsuka · The Abusers · Kidnnapers · Hotshot TV Producer · The Offenders · Woman · The Dark Guardian
Robots & Tools
Bandersnatch Droid DD007 · Bandersnatch Drone · Satellite Humpty Dumpty
Video Games
Rinne Sonogami · Marina Arusu