Leviathan Clan

**Leviathan** is one of the original Four Great Satans clans, who ruled over all Devils including the 72 Pillars, being famous for it's ability to manipulate and control water.

## Summary

The Leviathan Clan originates from the original Leviathan, who is its progenitor. She joined the original Four Great Satan's attempt to become the Kings of the World as they attempted to destroy Heaven, God of the Bible and his Angels as well as Azazel and his Fallen Angels.

Waging war against Heaven and Grigori, the original Leviathan was killed in the **Great War** alongside the other Satans.

Leviathan's daughter, Tsufaame Tereaku Leviathan, tried to inherit her mothers will of making the Devils and the Satans the Kings of the World as she alongside the other children of the original Satans prepared to restart the Great War in order to defeat Michael and Azazel.

During the **Devil Civil War**, Tsufaame with her army fought against Ajuka Astaroth and his army. The two engaged in single combat as Tsufaame was easily overpowered by Ajuka and killed.

Several hundred years later, Katerea Leviathan alongside other descendants of the Satans formed the Old Satan Faction, in order to fulfill the original Satans' goal of Devils and the Satans becoming Kings of the World by using Ophis as a means of achieving their goals. She along with the Khaos Brigade Magician faction; Nilrem, tried to ambush and disrupt the peace conference between Sirzechs, Azazel and Michael. She fought Azazel and despite using Ophis' snake to increase her power to that of the original Leviathan, she was easily defeated by Azazel after he used his Downfall Dragon Another Armor to increase his own power. She was killed by her own self-destruct spell in a vain attempt to kill Azazel alongside herself.

Several months later, the half-human hybrid of Leviathan, Ingvild Leviathan awoke from her sleeping sickness due to the manifestation of her Longinus; **Nereid Kyrie**. She was found by Nyx, who attempted to brainwash her using her magic, but Ingvild's heritage as the descendant of the Satan Leviathan allowed her to partially resist, as she was taken to the Grigori institute to help her with her Sacred Gear. While testing her powers, the brainwashing spell activated as she used her powers to teleport to Kuoh Town where she meet Issei Hyoudou, who saved her from a group of unknown devils, as she disappeared afterwards before he could talk with her. She reappeared during Team DxD's subjugation of unknown Devils, where she was forced to use her Sacred Gear on Issei. After finding out her circumstances, the Occult Research Club took her to a beach where they were attacked by Nyx, who used the brainwashing magic to make Ingvild weaken Issei with her Sacred Gear. After promising to save her, Issei went to fight Nyx, as he contacted Ingvild to make her use her powers to strengthen him which allowed him to defeat Nyx. After Nyx's defeat, Ingvild became Issei's Queen.

## Symbol

The clan symbol of the Leviathan consists of a capital "K" that has a snake-like line.

## Members

Known members of the clan include:

 Ingvild Leviathan | Ingvild Leviathan is one of the descendants of the original Leviathan and the possessor of the Longinus; **Nereid Kyrie**. She eventually becomes the Queen of Issei Hyoudou's Peerage.

## Gallery

Leviathan Magic Circle (Anime)Leviathan Sigil.pngLeviathan Sigil with Clan name in devil lettersKaterea Leviathan.jpgKaterea Leviathan, one of the leaders of the Old Satan FactionIngvild Leviathan, Red Dragon Emperor Issei Hyoudou's Queen
## Powers and Abilities

**Sea Serpent of the End** is the special ability of the Leviathan bloodline. It allows a Leviathan to control oceans and seas, including it´s inhabitants. They also can summon great amounts of water and control it. Another trait of it allows the Leviathan to transform into a gigantic serpent-like seadragon that can attack with a blue-black aura breath from its mouth. Since the ability is not as powerful in the Underworld due to his lack of oceans, its power is there diminished.

**Multiple Wings**: All Devils that are blood-descendant of the Original Leviathan have the unique trait of having multiple wings, similar as Angels and Fallen Angels.

## Trivia

* All of the members of the Leviathan Clan that have appeared in the series have been female.
* Ingvild Leviathan is the last surviving member of the clan.
* Ingvild Leviathan is also the only non-pureblood Devil member of the clan.
* Due to Ingvild's contributions to the Underworld as Issei Hyoudou's Queen, specifically the defeat of the Alliance of Hell, the higher-ups want her to take up the title of Satan Leviathan, due to her lineage as a descendant of the True Leviathan bloodline.

## References

1. ↑ High School DxD Zero
2. ↑ Light Novel Volume 4
3. ↑ True Light Novel Volume 1