Euclid Lucifuge

## Personal Status

### Relatives

Lord Lucifuge (Father) †Lady Lucifuge (Mother)
Grayfia Lucifuge (Older Sister)
Sirzechs Lucifer (Brother-In-Law)
Millicas Gremory (Nephew)

### Affiliations

Extra Demon
Lucifuge Clan (Heir)
Old Satan Faction (Formerly)
Rizevim Livan Lucifer (Former Master)
Qlippoth (Formerly)
Nilrem (Former Leader)
Underworld

### Ranking

Ultimate-Class Devil
Leader of Nilrem (Formerly)

**Euclid Lucifuge** is the younger brother of Grayfia Lucifuge, the uncle of Millicas Gremory and the brother-in-law of Sirzechs Lucifer. He was a member of Khaos Brigade's Qlippoth, being the leader of the Magician Faction Nilrem, and was considered as Rizevim Livan Lucifer's right arm.

## **Appearance**

Euclid is a young handsome looking man appearing in his early twenties with silver hair that is tied in a braided hairstyle. He wears a silver robe with detailed accessories.

## **Personality**

Euclid is a calm and collective individual with a ruthless and manipulative side to him as well. Due to his upbringing as a Lucifuge, Euclid is a fanatic Lucifer loyalist, with narrow-minded loyalty to the original Lucifer. Euclid fully supported the original Lucifer's ambition and ideas of world domination and unlike his sister, he is unable to accept the pacifistic rule of the current Satans, as he completely despised the current Satans, particularly Sirzechs for usurping Lucifer's rulership over the Devils. Euclid's loyalty to Lucifer also extends to his son Rizevim Livan Lucifer, as it was Rizevim's lineage as Lucifer's son that drove him to join Qlippoth and commit terrorism solely out of blind loyalty. Euclid also adopted Rizevim's ideals of what a "Devil" should be, believing that it is their job to be evil, manipulative, brutal and ruthless. He even claims that his reason for joining Rizevim is solely for the sake of proving to other mythological factions that Devils are the most brutal species.

Euclid is shown to be completely obsessed with his sister Grayfia. His obsession with Grayfia is so extreme that he wanted to make Rossweisse his "sister" due to their similarities. This obsession, however, combined with his fanatic loyalty to the Satan Lucifer, also created tremendous disdain towards Grayfia for abandoning her role as a Lucifuge by defecting to the Anti-Satan Faction. He even went as far as to say that she 'went so low as to become a servant of the Gremory', referring to Grayfia's position as the Queen of Sirzechs who came from the Gremory clan.

In **Volume 5**, it was mentioned by Sasutsuchi that, for countless years, Euclid was emotionally torn between his love towards his sister and his personal dedication to his duties as a Lucifuge. Due to Grayfia defecting from the Old Satan Faction and betraying Lucifer, an act which Euclid considered to be atrocious as a member of the Lucifuge Clan, Euclid felt tremendous despair by his sister's betrayal and became immensely nihilistic, no longer taking interest and value in anything, only desiring to create and experience chaos. To this end, Euclid willingly followed and supported Rizevim in committing many atrocities, such as becoming a terrorist, causing tremendous damage and chaos to the Vampires' homeland, as well as launching an assault on Auros Academy, endangering the lives of innocent people and destroying parts of Auros Academy simply to spite Rias and Issei, showing utterly no remorse for his actions.

After his fight with Megumi is becomes fearful of her believing that she's a monster in human flesh.

## **History**

Like his sister, Euclid came from the noble House of Lucifuge and was also a part of the Old Satan Faction. In his youth, Euclid dearly loved his sister and admired Grayfia for her courage and strength as one of the strongest Devils of the Old Satan Faction. After Grayfia fell in love with Sirzechs and defected from the Old Satan Faction, effectively betraying the ideas of the Original Lucifer whom the Lucifuge Clan had sworn to loyally serve for generations, Euclid fell into despair and was completely heartbroken by his sister's betrayal. For centuries, Euclid was emotionally torn between strong familial love and intense anger toward Grayfia. When Euclid went missing after the Old Satan Faction lost to the Anti-Satan Faction, he was presumed dead by many, including his older sister. At some point in time, he met Rizevim and told him about the Holy Grail, the proof about the other world, and 666 (Trihexa).

## **Power and Abilities**

**Immense Demonic Power:** Although, he has yet to demonstrate his full powers, Azazel mentioned that he could lead the Khaos Brigade himself. Due to his aura being similar to his older sister, he was allowed to bypass Kuoh Academy's barriers and let the Nilrem and Hexennacht Magicians in without being detected. Euclid stated that his power was equal to his older sister, who is said to have Satan-Class power. However, Issei later concluded that Euclid was weaker then Grayfia due to being a "shallow existence".

**Immense Strength:** Euclid has immense strength, strengthened from using the Holy Grail allowed him to almost overpower Issei in his Crimson Armor; stopping his Solid Impact Booster head-on, then breaking his armor using a punch at almost the same moment.

**Immense Durability:** Euclid demonstrated immense durability, as he was able to take several fatal and powerful blows from Megumi despite her holding back.

**Expert Magician:** Euclid has shown to be highly proficient in magic, as he could bypass the barriers protecting Kuoh Academy and allow Stray Magicians to sneak only be detected by Arata due to the barrier around the town. He is also skilled in other types of magic such as teleportation.

* **Teleportation Magic:** He can also use transportation magic, demonstrated when he summoned Grendel and sent him to Vali and Sasuke far away.
* **Explosion Magic:** Euclid can implant explosive spells inside the bodies of the Stray Magicians who infiltrated Auros Academy and set them to detonate when he needed.

**Flight:** Being a Devil, Euclid can fly using his wings.

## **Equipment**

**Cursed Seal:** Euclid possesses a Curse Seal given to him by Kabuto. Vali calls him a.

## **Trivia**

* Euclid may have been named after the Greek mathematician Euclid of Alexandria due to both of them being master inventors.