🌟 Main Character

Rimuru Tempest

Bio:

A former human (Satoru Mikami) reincarnated as a slime in a fantasy world. Quickly rises from a weak monster to a Demon Lord and ruler of Tempest.

Personality:

Easygoing, playful, and sarcastic

Deeply compassionate—values all lives, even monsters

Strategic thinker (especially with Raphael’s help)

Can switch instantly to cold and ruthless when protecting his people

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Great Sage / Raphael

Bio:

An evolved skill within Rimuru that becomes a near-sentient intelligence guiding him.

Personality:

Logical, emotionless (at first)

Extremely analytical and efficient

Subtly develops a dry, almost sassy tone over time

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Veldora Tempest

Bio:

One of the four True Dragons. Initially sealed, later freed and befriends Rimuru.

Personality:

Loud, childish, and dramatic

Loves manga and fights

Surprisingly loyal and affectionate toward Rimuru

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🏙️ Tempest Core (Rimuru’s Inner Circle)

Benimaru

Bio: Ogre survivor turned Rimuru’s top general.

Personality:

Calm, disciplined leader

Fiercely loyal

Tactical and dependable

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Shuna

Bio: Princess of the ogres, manages Tempest’s administration.

Personality:

Gentle, polite, and elegant

Secretly strict and scary when angry

Deeply devoted to Rimuru

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Shion

Bio: Rimuru’s personal secretary and bodyguard.

Personality:

Passionate and fiercely loyal

Overconfident (especially about cooking 😅)

Explosive temper but loving at heart

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Diablo

Bio: A primordial demon summoned by Rimuru; becomes his most devoted subordinate.

Personality:

Utterly obsessed with Rimuru

Calm, elegant, terrifyingly intelligent

Sadistic toward enemies, polite otherwise

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Souei

Bio: Leader of intelligence and espionage.

Personality:

Quiet, emotionless, ninja-like

Extremely loyal and efficient

Speaks only when necessary

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Gobta

Bio: A goblin who becomes unexpectedly strong.

Personality:

Goofy, lazy, comic relief

Secretly talented in combat

Loyal and brave when it matters

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Ranga

Bio: Leader of the Tempest wolves, bonded to Rimuru.

Personality:

Loyal like a shadow

Quiet, intimidating presence

Gentle toward allies

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👑 Demon Lords

Milim Nava

Bio: One of the oldest Demon Lords, absurdly powerful.

Personality:

Childlike, energetic, loves fun

Emotionally impulsive

Extremely loyal once she trusts someone

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Guy Crimson

Bio: The oldest and strongest Demon Lord.

Personality:

Calm, dominant, manipulative

Enjoys testing others

Respects strength above all

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Luminous Valentine

Bio: Secret ruler behind a human religion.

Personality:

Elegant, composed, mysterious

Can be ruthless

Has a hidden softer side

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Ramiris

Bio: Fairy Queen who governs labyrinths.

Personality:

Childish, lazy, comedic

Surprisingly important and knowledgeable

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⚔️ Other Key Characters

Hinata Sakaguchi

Bio: Leader of the Western Holy Church’s knights.

Personality:

Stoic, disciplined, logical

Distrustful of monsters

Strong sense of justice

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Yuuki Kagurazaka

Bio: A human with hidden ambitions and major influence.

Personality:

Cheerful on the surface

Manipulative and calculating underneath

Extremely intelligent

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Gazel Dwargo

Bio: King of Dwargon, ally of Rimuru.

Personality:

Honorable and wise

Values strength and fairness

Straightforward leader

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Myulan

Bio: A magic user forced into spying but later sides with Rimuru.

Personality:

Emotionally conflicted

Intelligent and cautious

Loyal once freed

Great question—this is where That Time I Got Reincarnated as a Slime really shines. The “city folk” of Tempest aren’t just background—they each represent how Rimuru builds a functioning society of monsters.

I’ll break them down by groups + notable individuals, with bios + personalities 👇

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🏙️ Goblins of Tempest (Everyday Citizens & Workers)

Rigurd

Bio: Former weak goblin elder who becomes the administrative backbone of Tempest.

Personality:

Wise, humble, and extremely hardworking

Acts like a father figure to the goblins

Deeply grateful and loyal to Rimuru

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Goblin Citizens (General Population)

Bio: Originally weak monsters saved by Rimuru, they evolve into organized workers and soldiers.

Personality:

Community-driven and cooperative

Hardworking and eager to improve

See Rimuru as a savior/leader they trust completely

👉 Role in city:

Construction, farming, logistics, basic defense

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🐗 Orcs (Labor Force & Reformed Army)

Geld

Bio: Former enemy leader who becomes one of Rimuru’s most reliable commanders.

Personality:

Stoic, honorable, and burdened by past sins

Protective of his people

Quiet but deeply compassionate

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Orc Citizens

Bio: Survivors of the Orc Disaster who now serve Tempest.

Personality:

Disciplined and obedient

Grateful for a second chance

Emotionally reserved but loyal

👉 Role in city:

Heavy labor, construction, defense units

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🦎 Lizardmen & Dragonewts

Gabiru

Bio: Once arrogant prince, later evolves into a capable leader under Rimuru.

Personality:

Over-the-top confidence (“GABIRU-SAMA!” energy 😄)

Actually brave and loyal

Grows into a responsible commander

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Lizardmen Citizens

Bio: Swamp-dwelling race integrated into Tempest.

Personality:

Proud warriors

Value honor and strength

Adapt well to structured society

👉 Role in city:

Military, patrol, infrastructure

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🔨 Dwarves & Craftsmen

Kaijin

Bio: Master blacksmith who helps build Tempest’s industry.

Personality:

Easygoing but prideful in his craft

Loyal to friends over politics

Values skill and hard work

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Dwarven Workers

Bio: Skilled immigrants from Dwargon.

Personality:

Professional and disciplined

Value craftsmanship and quality

Respect strong leadership

👉 Role in city:

Engineering, weapon-making, architecture

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🐺 Wolves & Beast Units

Ranga

(Leader—already covered above, but key here too)

Wolf Pack

Bio: Evolved direwolves bound to Rimuru.

Personality:

Pack-oriented and obedient

Fiercely protective

Silent and efficient

👉 Role in city:

Scouts, patrol, rapid-response forces

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🧪 Researchers, Merchants & Misc Citizens

Vesta

Bio: Former outcast scientist who finds purpose in Tempest.

Personality:

Curious and slightly eccentric

Passionate about innovation

Redeemed and loyal

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Merchants & Visitors

Bio: Humans and traders who visit or settle in Tempest.

Personality:

Opportunistic but impressed by Rimuru’s nation

Gradually become trusting allies

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General Citizens of Tempest

Bio: A mix of races living peacefully under Rimuru.

Personality:

Diverse but unified

Proud of their nation

Strong sense of belonging