Kanji レヴィアタン
Romanji Reviatan
Race Demon
Age 8 years
Gender Male
Height 150cm
Weight 40kg
Eyes Yellow
Hair Light-Blue
Unusual Features Has moles on his face
Professional Status
Affiliation Gehenna
Partner Zelda
Personal Status
Status Alive
Relatives Satan (father)

Yuri Egin (mother)
Rin & Yukio Okumura (brothers)
Aoi Okumura (sister)
Miya (half-sister)
The Six Princes of Hell (brothers)

Alias The Young Master
Exorcist Status
Meister Type {{{meister type}}}
Leviathan is the youngest son of Satan and Yuri and therefore a Demon Prince of Gehenna. But since he's so young, he's called Young Master (jap.: 坊ちゃん / bocchan) instead. However, he prefers to be referred to as Levi.


Leviathan is the spitting image of his father - literally. Except for his light-blue hair opposed to Satan's silver hair. Despite being only eight years old, he's considerably tall for a demon of his age. Like his mother and his brother Yukio, Leviathan has moles on his face and his skin is rather pale. He always wears these pale-velvetish clothes because he thinks they're cool.


Leviathan has to be the member of the royal family who's the most pompous. Ever since his birth, he got the affection of his parents, dozens of demon maidservants and also the rest of Gehenna. Although he isn't as snobby as Belphegor, his pompous self sure isn't to be underestimated. He annoys his siblings a lot and Rin isn't seldomly at the verge of insanity because of Leviathan. He calls himself the awesome me (jap.: おれさま / oresama), has a love for games and very often wants to be companied by his sister Aoi.



Powers & AbilitiesEdit

He has no powers as of now - except for his blue flames, which are a trademark for anything related to Satan.


Aoi OkumuraEdit

Leviathan calls her Nee-san (jap. for older sis) and he admires her very much because of her strength, although he would never ever admit that. She protected him very often from his annoyed siblings when he went a little overboard with his pompous self. He has the wish to return the favour to his sister, but she thinks he's too young to fight yet.


Leviathan's companion. Ever since he found her severely injured in front of the fortress, she never stops following him anymore and insisted working for the royal family. Therefore, she formally was admitted as Leviathan's demon maidservant. Zelda calls him Levi-sama and Leviathan started to like the situation cuz he had someone actually liking his pompous nature.


  • Leviathan is one of the Seven Princes of Hell.
  • He loves sweets and candy.
  • He's always trying to impress his parents by being well-behaved on certain occasions.