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Hee-hee-hee-hee-hee. The birth of a new demon lord! Quite an old sensation but a familiar one. What a truly wonderful day! Such an offering—and the very first order from our lord, no less. This is such an honor; I couldn't possibly be more enthusiastic about this. Would it be all right to continue serving you in the future?

Diablo to RimuruA Demon Lord's Awakening

Diabloディアブロ, diaburo, also known as Noir原初の黒ノワール, nowāru, lit. "Primordial Black"」 is one of the seven Primordial Daemons and an "executive" of the Jura-Tempest Federation, serving as a Second Secretary and Butler to Rimuru Tempest. He is the leader of the Black Numbers and is Rimuru's most powerful subordinate among the Twelve Guardian Lords and the Top Three.

Quick Answers

What role does Diablo play in the Jura-Tempest Federation? toggle section
Diablo serves as Rimuru Tempest's personal butler and second secretary. He is extremely loyal towards Rimuru and thus devoted to this position. Diablo is also the leader of the Black Numbers, the strongest military unit in the Jura-Tempest Federation.
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How does Diablo's appearance reflect his title as 'Primordial Black'? toggle section
Known as the Black Primordial, Diablo, or Noir, has a distinctive appearance. His black hair is streaked with red and gold, and his eyes are golden with red pupils and black sclerae. His outfits are dominantly black, he initially wore aristocratic garments, which were replaced by a butler outfit following his naming and subsequent evolution to a Daemon Lord. This minimal change in his appearance underscores his enduring nature with the color black standing out from his head to toe, consistent with his 'Primordial Black' title.
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Who are the other members of the Twelve Guardian Lords? toggle section
The Twelve Guardian Lords, appointed by Rimuru, are Diablo (Demon Lord), Benimaru (Flare Lord), Geld Junior (Barrier Lord), Gabiru (Dracolord), Ranga (Star Lord), Kumara (Chimera Lord), Zegion (Myst Lord), Adalmann (Gehenna Lord), Shion (War Lord), Testarossa (Killer Lord), Ultima (Pain Lord), and Carrera (Menace Lord).
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What is the significance of Diablo's title, Noir? toggle section
The title Noir signifies Diablo's status as the Black Primordial, one of the seven oldest and most powerful daemons. Before getting named, his title also served as a way to address him.
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How does Diablo's power compare to Rimuru Tempest's? toggle section
Diablo's combat prowess is immense, earning him the status of Rimuru Tempest's strongest subordinate. While his raw power and skills are lower than Rimuru's, he is able to compensate for this with his battle sense, techniques, experience, and deep knowledge about magic and skills. After evolving into a Devil Lord, Demon Slime Rimuru felt like Diablo was no longer an opponent they can beat. Due to Food Chain, Rimuru's power grows as their subordinates' powers grow on top of being able to access their subordinates skills, making them virtually impossible to lose against one of their subordinates.
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Appearance[]

Archdaemon[]

Diablo Arch Demon Anime

Black hair with streaks of red and gold, as well as golden eyes with red pupils and black sclerae, Noir was finely dressed in garments like that of a prince. Other than that, he looked like a normal human, though he was able to unfold wings as well.

Daemon lord[]

Diablo Demon Peer Anime

Diablo's change in appearance is possibly the least drastic after any evolution, with only his princely garments being replaced by a Butler outfit, reflecting his wish to serve Rimuru. Despite that, however, his dignity did not decrease, but rather increased instead.

Personality[]

Diablo is whimsical but also very calculative when he wants to be. He usually displays an absolutely composed attitude, but whenever anyone insults Rimuru, his polite exterior turns into one of cold malice as he proceeds to punish the "sinner" in the most excruciating way imaginable, unless it goes against Rimuru's orders. However, when one has a good relationship with Rimuru, Diablo usually treats them in an amiable way, though that does not mean he won't manipulate them for his own ends, "his own ends" usually referring to being close to Rimuru more often.

Diablo follows Rimuru's orders down to the letter. When tasked with increasing the difficulty of Framea's test as a guard for guests to Tempest, Diablo had summoned a moderately strong monster. Upon seeing Framea's will to fight despite being paralyzed by the creature's goo, Diablo sent the creature away and returned to report back on her actions. Should there be any "grey areas" in his instructions, Diablo has the freedom to carry out his orders how he sees fit.

The greatest show of Diablo's loyalty to Rimuru was recruiting hundreds of other daemons, including the last three Primordials, to serve his master; the creation of the Black Numbers, who became the de facto strongest fighting force in Tempest.

Diablo also despises owing a debt, even to someone who has already passed on. Shizu's replacement, Tiss attempted a desperate summon to save Shizu's Students from a Phantom, only for the unnamed Diablo to offer his aid for what was practically a pittance of a price by forbidding her from mentioning his involvement, and proceeded to slaughter the aggressor in a truly horrific fashion, thus fulfilling his debt.

Background[]

Thought of as strange by the other Primordials, Noir only acted on his whims and very rarely showed any regular behavior, to the irritation of some of the other Primordials. Due to that, he one day stopped pursuing power as his power efficiency became so high that any fights were too easy for him, causing him to remain as an Archdaemon despite having enough power to evolve into a Daemon lord already.

One day when he personally answered a Demon Summon of the Silver Wings on a whim, he had a chance encounter with Shizue Izawa. During a confrontation where Noir was about to finish her off, he was repelled by Shizue's Anti-magic Mask instead, making Noir realize that the mask had an incomprehensible nature. After those events, he returned to the Spiritual World and continued observing Shizue and the mask in secret. When he saw that the mask broke and lost its power when the mask came into Rimuru's hands, Noir came to the conclusion that Rimuru is connected to that power of the mask that surpasses time itself as he witnessed and that Rimuru is, therefore, the key to the "truth of the world."

He tried to get summoned when Rimuru performed a Greater daemon Summoning within The Dungeon. He failed because Beretta, his own descendant, answered the summon first much to his chagrin.

Finally, when Rimuru did another Greater daemon Summoning to catch the hiding Razen, Noir managed to answer the call alongside two of his Greater daemon followers. After some further events, Noir finally received the name "Diablo" from Rimuru and evolved into a Daemon lord.

Trivia[]

  • Rimuru named Diablo after the Supercar Lamborghini Diablo. Another reason he chose this name is because Diablo is the Spanish word for "devil."

Gallery[]

Rimuru Tempest Icon (White) VIEW GALLERY
Click the icon on the right or the link above to view gallery.

References[]

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