Primordials (原初の悪魔 gensho no akuma, lit. "Primordial of Demon") also known as Progenitors or Primals, are the oldest and most extraordinarily powerful Demons. According to Leon Cromwell, each of them is referred to by their signature colors rather than an actual name.

These "substitute names" don't count as their actual names in the true sense of being a named monster:

Appearance

Black: Wears a full butler attire with white gloves. He has black hair with a strand of red in the front.

White: Has silver hair, snow-white skin, and red eyes.

Red: Has flowing crimson red hair and eyes.

Blue: Wears a deep-red maid outfit and has short blue hair and eyes.

Green: Wears a deep-red maid outfit and has long, curly green hair and eyes.

Violet: Has purple hair with a ponytail on the side and yellow eyes.

Yellow: Has short blonde hair and blue eyes.

Personality

According to Leon Cromwell, they are heretical and often troublesome because they fight using technique and wits instead of raw and sheer power, unlike usual Demons.

Black: Rouge often labels Noir and the demons of this color as oddballs that seem to have different values towards things other demons would consider common sense, such as the pursuit of power. After being summoned by Rimuru, Noir immediately requested that he would be able to serve him and remains intensely loyal.

Blue: While she may seem to be a composed beauty on the surface, Bleu does not like working and leaves most necessary tasks to Vert. She likes to complain about a lot of things, even in the heat of battle. She is loyal to Rouge.

Green: Bleu's fellow maid to Rouge, she likes to take her tasks very seriously and devotes her all to her master, even creating a cult with her at the center to aid Rouge's observations of humans.

Red: Is by far the proudest of the Primordial demons, and the only one of them without a master, instead declaring himself the first Demon Lord. He has an overbearing personality and does not hesitate to coerce people with threats to do what he thinks is best.

Purple: Violet is the Primordial with the youngest appearance and enjoys being treated like a princess by her lieutenant demons. However, she also has a fondness for the pain of others. Loyal to Rimuru after being convinced (beaten up) by Noir.

White: An absolute beauty with a seemingly gentle personality but is one of the scariest demons of all in terms of personality. She massacred an entire city and more for laying hands on a friend of hers as is recorded in the Lake Shore Dyed Scarlet Incident. After swearing loyalty to Rimuru, she gets involved with politics by manipulating other members of the Western states council through various sorts of coercion. A stereotypical demon offering temptations.

Yellow: Before being taken under Rimuru's wing, she had the hobby of firing off sporadic bursts of nuclear class magic, normally in the general direction of El Dorado, has seemingly calmed down since then, but is viewed as a menace by anyone who knew of her before.

Story

Noir was summoned by a woman, one of two members of Silver Wings, who begged him to take revenge on the Arch Demon Orthos. Noir agreed to her wish, and in exchange, devoured her and her companion's Souls. Noir then hunted down Orthos, fulfilling his contract. In the process of doing that, he met Shizue Izawa and took note of her Anti-Magic Mask that not only blocked one of his attacks but also ended up erasing one of his arms instead. The mask made him very intrigued, so after the incident, he secretly continued observing Shizue until the mask lost its Space-Time attribute when the mask reached Rimuru. Ever since he tried intercepting any Demon summoning spell performed by Rimuru to get summoned, but the first time Rimuru used it, Noir got one-upped by Beretta instead. But upon Rimuru's second use of Demon summoning, Noir, as well as two Greater Demon aides successfully managed to be summoned by Rimuru. Shortly afterwards, Rimuru granted Noir the name "Diablo."

Blanc was the Demon of note in the Lake Shore Dyed Scarlet Incident. She possessed a young woman by the name of Blanche whom she befriended. Her kingdom had a pact with the Primordial Demon to one day sacrifice the princess' body to the Demon as a physical body as long as she kept them safe from other warring nations. This pact was cemented by the crimson eyes of every woman born to the royal family. When the country was destroyed due to schemes of several traitors and the Eastern Empire, Blanche chose to kill herself, which gave Blanc the possession of her body and ownership of her Soul. Blanc then took revenge for her friend causing what would later be known as the "Lake Shore Dyed Scarlet Incident." Then, after many years passed, Diablo persuaded her to meet Rimuru alongside Jaune and Violet. After meeting Rimuru for the first time, she chose to join Tempest and was granted the name "Testarossa" by Rimuru.

Abilities

Marquise class of Demons and higher, as well as Primordials, are able to ignore the Magicule limitations of the race even when not named.

In addition, every Primordial has a unique innate ability.

Trivia

  • The nickname of each Primordial is the French word for their respective colors.
  • Primordials were introduced with the Light Novel. This terminology didn't exist in the Web Novel version.
  • Naming a progenitor is risky unless the namer is a Demon Lord (or on the level of one as Rimuru would have been incapable of naming Diablo before becoming a Demon Lord) or has a surplus of souls to convert into magical energy.
  • Upon reaching a certain threshold of power, demons are assigned a color that matches one of the Primordials based on their personality. All demons of a certain color share the basic personalitiy traits of their progenitor and while they might express these traits in different ways, their demeanor and mindset are always a match for their progenitor.
    • For example Beretta, like Diablo, is polite, reserved, and affable while valuing things beyond strength and having a passion for learning or experiencing new things. Like Diablo, he is absolutely ruthless and unfeeling towards his enemies and can casually eliminate them without ever dropping his polite and affable demeanor.
    • Another example of this is Orthos, who was noted to possess the same prideful, cunning and manipulative disposition as his progenitor, Guy Crimson. This is seen where he showcased enough intelligence and cunning to root himself into human society and obtain his own personal kingdom and create extensive plans in order to further strengthen himself with the majority of the world being oblivious to his machinations, all traits possessed by Guy, his primordial.
  • According to Mizary, Testarossa and Diablo form a troublesome duo.
  • Ultima is considered the shortest of the Primordials.
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