Rimuru and Devil

Identity

Name: Devil

Race: Primordial Demon

First appearance: Rimuru Evolution Saga in Tensei Shitara Slime Datta Ken

Loyalty: Serves Rimuru with absolute devotion, considered his “strongest subject”

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⚙️ Personality

Elegant, calculating and extremely intelligent.

Sadistic and proud, he enjoys showing his power and superiority.

Absolutely loyal to Rimuru, whom he respects and admires.

He has a dark, sarcastic and theatrical sense of humor.

He enjoys strategy and manipulation, but always within the limits of his loyalty.

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💪 Powers and abilities

Superhuman strength and speed, even for a primordial demon.

High-level demonic magic, capable of devastating entire armies.

Supreme strategic intelligence, can manipulate situations and enemies.

Partial invulnerability and regeneration, resistant to physical and magical attacks.

Combat versatility, capable of fighting hand-to-hand or dominating from a distance with complex spells.

Command of other demons: Can lead demonic armies effortlessly.

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🌀 Story and arc

Diablo was born as a primordial demon, with exceptional power and talent.

After meeting Rimuru, she becomes his most loyal subject, helping in the construction of Tempest.

Participates in global conflicts and wars, always as a strategist and attack force.

His bond with Rimuru is one of absolute loyalty and respect, almost fraternal.

Rimuru Tempest — formerly Satoru Mikami, an office worker who is reincarnated as a slime in another world. After encountering the dragon Veldora, he unleashes his power and evolves into a Greater Demon, building the Tempest nation, which unites various races.

Personality: Kind, charismatic, and empathetic, with a strong sense of justice. Intelligent and strategic, he knows when to be cool or cool. Very loyal to his friends and subjects.

Powers:

Absorption and copying of abilities of any being.

Complete regeneration, superhuman strength and speed.

Elemental and forbidden magic, partial space and time control.

Transformation and multiplication, creation of temporary clones.

Constantly evolving, accumulating almost infinite power.

History: From ordinary slime to nation's leader and near-divine figure. He protects his people, participates in wars and treaties, and maintains a balance between power and diplomacy.

Curiosities:

It is genderless, although it uses masculine.

You can instantly learn any skill.

His relationship with Veldora and allies humanizes him.

One of the most powerful characters in isekai, comparable to divine or demonic entities.

Rimuru combines absolute power, leadership, and empathy, making him a perfect character for strategic, philosophical, or humorous dialogues.