Japanese Name ディアブロ
Romaji Name Diablo
Nicknames Diablo Noir
Series Tensei shitara Slime Datta Ken
Age Unknown
Weight Unknown
Height Unknown
Date of Birth Unknown
Blood Type Unknown

Diablo – The Demon Duke of “Tensei Shitara Slime Datta Ken


Diablo, also known as Diablo Noir, is a fictional character from the anime and manga series “Tensei shitara Slime Datta Ken” (The Time I Was Reincarnated as a Slime). He has a unique and complex personality that reflects his demonic nature. Diablo is confident and self-assured, often displaying a calm and collected demeanor. He is extremely loyal to Rimuru Tempest, the series’ protagonist, and follows his orders without question. Despite his demonic origins, Diablo has a strong sense of honor and values friendship and camaraderie.


Diablo is a primal demon who was summoned by Rimuru Tempest, the main character, to serve as his loyal subordinate. In his previous life, Diablo was a player of an online game and used the name “Diablo” as his screen name. After being summoned to the world of Tensei Shitara Slime Datta Ken, Diablo finds himself in a new existence as a powerful demon. Despite his intimidating appearance, Diablo quickly forms a deep bond with Rimuru and becomes an invaluable ally in his quest to build a peaceful world.


Diablo has a striking and intimidating appearance that befits his demonic nature. He has crimson skin and long, flowing black hair. His eyes are a bright red, and he has two small horns on his forehead. Diablo’s clothing consists of a black coat with gold accents, giving him a regal and majestic appearance. His overall design exudes power and dominance, reflecting his status as a demon duke.


Diablo is an incredibly powerful demon with a wide range of abilities. He possesses unique skills such as Great Wizard and Tempter, which give him immense magical power and the ability to manipulate others. Diablo is also proficient in various combat skills, including Law Manipulation and Barrier Creation. His mastery of magic and combat techniques makes him a formidable opponent in battle.


In the world of Tensei Shitara Slime Datta Ken, Diablo originated in the realm of demons. He is a powerful demon duke and possesses the divine protection of the Tempest, also known as the “Protection of the Storm. Diablo’s summoning to the new world by Rimuru Tempest marks the beginning of his journey as a loyal servant and ally. Throughout the series, Diablo’s origins as a demon and his connection to Rimuru’s ambitions play a significant role in shaping the story.


Information from the MyAnimeList page on Diablo (Tensei shitara Slime Datta Ken) and Google search results were used to create this article.

Diablo – FAQ

What is Diablo’s role in “Tensei Shitara Slime Datta Ken”?

Diablo is a major character in the light novel, manga, and anime series “Tensei shitara Slime Datta Ken” (also known as “The Time I Was Reincarnated as a Slime”). He serves as one of the main antagonists turned allies and acts as Rimuru Tempest’s loyal servant and subordinate.

How does Diablo have such incredible power and abilities?

Diablo possesses incredible powers and abilities because he was summoned as a Demon Lord by Rimuru Tempest. As a Demon Lord, Diablo possesses immense magical power and a wide range of magical abilities. He is known for his exceptional combat skills, mastery of dark magic, and demonic transformation.

Can Diablo use any special weapons or equipment?

Diablo relies primarily on his magical abilities and does not rely heavily on weapons or equipment. He does have a staff that he occasionally uses as a focus for his spells, but his true strength lies in his mastery of magic and his demonic powers.

What is Diablo’s personality like?

Diablo is characterized as extremely loyal, devoted, and subservient to Rimuru Tempest. He is often seen as a serious and stoic individual, but he can also show a playful and mischievous side. Diablo is highly intelligent, strategic, and always puts Rimuru’s welfare and wishes above all else.

Can Diablo be considered a protagonist or an antagonist?

Although Diablo initially appears as an antagonist in the series, he later becomes one of the main allies and serves as a loyal subordinate to Rimuru Tempest. Although Diablo has a dark and sinister past, his loyalty and devotion to Rimuru make him more of a protagonist in the story.

What are some of Diablo’s notable abilities and techniques?

Diablo has a variety of powerful abilities and techniques. Some of his notable abilities include Abyssal Blast, a powerful dark magic spell; Annihilation Ray, a high-level destruction spell; Black Lightning, a lightning-based attack; and Absolute Severance, a technique that cuts through anything. In addition, Diablo can transform into his true demonic form, increasing his strength and granting him additional abilities.