Rimuru Tempest, the slime-turned-Demon Lord from That Time I Got Reincarnated as a Slime, has absorbed millions of fans with his infinite growth, diplomatic charm, and god-tier evolution. From a corporate drone to the ruler of Tempest, Rimuru’s isekai journey redefines “overpowered.”
Rimuru Tempest Wiki
| Full Name | Rimuru Tempest (former: Satoru Mikami) |
| Titles | Demon Lord, Chancellor of Tempest Federation, Octagram #8, True Dragon |
| Age | 2+ years (slime) → appears ~20 (human form) |
| Gender | Genderless (presents male/female as needed) |
| Date of Birth | Unknown (reincarnated ~2023) |
| Blood Type | None (slime) |
| Origin | Japan → Great Forest of Jura |
| Family | Veldora (sworn brother), Shizue Izawa (spiritual mother), subordinates |
| Friends | Edward Elric |
Physical Appearance
| Height | 20 cm (slime) → 160 cm (child) → 175 cm (adult human) |
| Weight | 0.3 kg (slime) → 60 kg (human) |
| Hair Color | Silver-blue (human form) |
| Eye Color | Golden (heterochromia in Ultimate form) |
| Skin Color | Pale (human) / Transparent blue (slime) |
Ruler & Demon Lord Career
| Occupation / Role | Ruler of Jura Tempest Federation, Demon Lord, Teacher, Diplomat |
| Nation | Jura Tempest Federation (monster + human alliance) |
| Subordinates | Diablo, Shion, Benimaru, Souei, Ranga, Milim (ally) |
| Mentor / Teacher | Veldora, Shizue Izawa, Great Sage → Raphael → Ciel |
| Affiliation(s) | Octagram, Council of Nations, Eastern Empire (truce) |
| Status (2025) | True Dragon, preparing for Eastern Empire war (LN Vol 21+) |
| Debut (Anime) | Episode 1 (2018) |
| Debut (Manga) | Chapter 1 (2015) |
| Voice Actor (JP) | Miho Okasaki |
| Voice Actor (EN) | Brittney Karbowski (slime) / Jason Liebrecht (human) |
Powers & Combat Profile
| Core Skill | Great Sage → Raphael → Ciel (AI analysis, future prediction) |
| Unique Skills | Predator/Gluttony, Infinite Regeneration, Universal Sense |
| Ultimate Skills | Raphael, Gluttonous King Beelzebuth, Void God Azathoth, etc. |
| Magic | All elemental, space-time, soul manipulation |
| Notable Fights | vs Orc Disaster, vs Clayman, vs Hinata, vs Velgrynd |
Social Media Presence
- X (Twitter) Fan Account: @RimuruTempest
- Reddit: r/TenseiSlime
- TikTok: #Rimuru
Rimuru Tempest Story
Satoru Mikami, a 37-year-old salaryman, dies shielding a junior — reincarnated as a blind, voiceless slime in a fantasy world. Naming Veldora grants human form and Great Sage.
His empire:
- Vol 1–5: Builds Tempest village, absorbs monsters.
- Vol 6–10: Becomes Demon Lord, revives 10,000+ souls.
- Vol 11–15: Founds Federation, defeats Falmuth, allies with Milim.
- Vol 16–21 (2025): Ascends to True Dragon, prepares for Eastern Empire war.
Rimuru’s motto: “If I can’t solve it with words, I’ll solve it with power.”
3. Powers and Abilities
Rimuru is infinite potential:
- Predator/Gluttony – Absorbs anything, gains skills/memories.
- Ciel (Manas) – AI that auto-optimizes all skills, predicts futures.
- True Dragon Form – Planet-level magic, space-time control.
- Soul Corridor – Instant teleport, shared power with subordinates.
- Ultimate Skills – 7+ god-tier abilities (e.g., Azathoth = void creation).
Example: vs Velgrynd — uses Ciel to analyze infinite acceleration, counters with time stop + soul eat.
Personality Traits
Rimuru is kind, pragmatic, and hilariously dense:
- Diplomat King – Solves wars with hot springs and food.
- Harem Oblivious – Surrounded by admirers, thinks they’re “just friends.”
- Merciless When Needed – Wiped out 20,000 Falmuth soldiers in seconds.
- Foodie – Invents Tempest ramen, honey, pizza.
Rimuru Tempest Quotes
- “I’m a slime. What did you expect?”
- “Great Sage, analyze!”
- “Diplomacy first… but if that fails, Gluttony.”
- “I just wanted a peaceful life…”
Popular Fan Theories
Debated in :
- Will Rimuru become a God? → LN hints at Digital Lifeform evolution.
- Rimuru x Chloe endgame? → Time loop soulmates = top ship.
- Ciel = sentient? → Yes — Manas has feelings, jealous of Shuna.
- Rimuru vs. Goku? → Ciel calc: 99.9% Rimuru win (infinite scaling).
Unknown or Fun Facts about Rimuru Tempest
- Original Name: Satoru = “enlightenment”; Rimuru = “beautiful flow.”
- Voice Actress Switch: Miho Okasaki (slime) → Kenjiro Tsuda (male human in drama CD).
- Skill Count: Over 100,000 absorbed (LN estimate).
- Weakness: Holy magic (pre-Demon Lord), now immune.
FAQs
Q1. Is Rimuru male or female?
Genderless slime — presents male in human form.
Q2. How strong is Rimuru in 2025?
True Dragon — planet+ level, multiversal potential.
Q4. Who is Rimuru’s best friend?
Veldora — sworn brother, manga buddy.
Q5. Can Rimuru die?
Only if soul is erased — has infinite regeneration.
Q6. What is Rimuru’s height and birthday?
Height: 175 cm (adult) | Birthday: Reincarnation Day (unknown)
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