A clone of Midgardsormr as seen from the anime
Kana ミドガルズオルム
Romaji Midogaruzuorumu
Race Dragon
Gender Male
Nicknames Sleeping Dragon
Dragon of the End
World Serpent
Midgard Serpent
Equipment &
Fire Breath
Personal Status
Relatives Loki (Father)
Angrboða (Mother)
Fenrir (Older Brother)
Hel (Younger Sister)
Sköll (Nephew)
Hati Hróðvitnisson (Nephew)
Affiliations Asgard
Five Great Dragon Kings
Status Alive
Ranking Dragon King

Miðgarðsormr is one of the Five Great Dragon Kings. Known as the Sleeping Dragon, Dragon of the End, and World Serpent, he is the largest dragon in existence, with Apophis and Great Red being second and third in terms of size. He is also the second child of Loki and the younger brother of Fenrir.


Midgardsormr is a grey Eastern dragon with an enormous body measuring around 500-600 meters in length, well over five times the length of Great Red's body.


He is an extremely lazy dragon, spending most of his time asleep. He is also quite dismissive towards others including his father and brother, claiming that they are meaningless existences to him. When conversing with people, Miðgarðsormr speaks with a well-mannered, very laid-back tone of voice, occasionally falling asleep in mid-conversation.

Interestingly enough however is that Miðgarðsormr doesn't seem to mind waking up when there is something interesting going on, even going as far as saying to wake him up again if something happens.


Miðgarðsormr (or Jörmungandr) is the middle child of the Giantess Angrboða and the god Loki. Eventually, he grew so large that he was able to surround the earth and grasp it with his own tail which is what gave him the nickname "World Serpent". When he lets go, the world will end, earning him his second nickname "Dragon of the End". Though immensely powerful, his colossal size and laziness left the gods in Asgard scratching their heads and they decided to have him sleep at the bottom of the ocean until Ragnarok, thus earning him his third nickname "Sleeping Dragon". In spite of this, he has been known to surface on occasions (though he was still asleep when this happened). During one of these instances, he was taken care of by the local Dökkálfar (Dark-Elves) and Svartálfar (Dwarves).


Birth of the Breast Dragon EmperorEdit

Miðgarðsormr was mentioned in Volume 4 when Ddraig explains to Issei about Ophis and the Five Great Dragon Kings.

The Heroic Oppai DragonEdit

He officially appeared in Volume 7, beings summoned while sleeping by the Occult Research Club and Vali Team through the dragon gate to ask for advice in preparation for their battle against Loki and Fenrir, telling them the method to temporarily capture Fenrir and how to defeat Loki.

Powers & AbilitiesEdit

Immense Strength: Miðgarðsormr is a powerful Dragon King, mainly due to his massive size.

Keen Intellect: He is a very wise and intelligent dragon (though all he ever does is sleep) as he explains on how to handle and defeat both Loki and Fenrir very well and effectively.

Fire Breath: Miðgarðsormr also has the ability to breathe fire, while never shown, his clone was able to use that ability.


  • Loki (Miðgarðsormr's father) created at least 10 smaller, mass-produced versions of him.
  • Miðgarðsormr's name comes from the other name of the Norse mythology's serpent Jörmungandr.
    • Miðgarðsormr means "Midgard Serpent" from old Norse
      • The word "Midgard" means "Middle Earth" so in English, the meaning is "Middle Earth Serpent".
    • Jörmungandr is related to the Ouroboros Ophis (Greek for "tail-devouring snake") first appearing in Egyptian and Indian myths, the basis of the ouroboros dragon Ophis.
  • Midgardsormr is the second Eastern Dragon introduced in the series, the first being Vritra, third being Yu-Long, fourth being Níðhöggr, and fifth being Apophis.



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