Rimuru

Biodata

Feature	Value
Name	Rimuru Tempest (利姆鲁)
Alias(es)	Lord Rimuru
Species/Race	Slime; Named Monster; Demon Lord Species; later an awakened True Demon Lord
Gender	Originally genderless; later altered into a feminine form 122 327
Affiliation	Jura Great Forest Alliance; Jura Tempest Federation
Occupation/Role	King and leader of the Jura Tempest Federation
Status	Active; returned to the Jura Great Forest after a month away 328
First Appearance	Chapter 15 (earliest provided reference) 15

Power Progression

Stage / Realm / Level	Chapter	Notes
Middle Demon	88	Rimuru was a Middle Demon before receiving a name from Veldora.
Named Monster / peak Upper Demon	88	Veldora named Rimuru and accepted the shared surname Tempest; the naming triggered Rimuru's evolution. The power granted by Veldora is later described as that of a peak Upper Demon 15 88.
Demon Lord Species	187	Rimuru is described as having barely reached Demon Lord Species-level strength after leaving Veldora's cave.
Awakened True Demon Lord	310	After killing the attacking human soldiers in rage, Rimuru awakened using the souls of 20,000 humans and resurrected Shion and the others.

Background / History

Rimuru reincarnated as a Slime and encountered Veldora, the sealed Storm Dragon, in the Infinite Prison. Learning that Veldora's leaking Magic Elements would eventually kill him, Rimuru chose to free him. The pair exchanged names as proof of equality: Veldora named the Slime Rimuru, while Rimuru gave the dragon the surname Tempest. Rimuru then used Predator to engulf the Infinite Prison so they could work toward breaking it from within 88.

After leaving the cave, Rimuru gathered disparate monster races in the Jura Great Forest. Rimuru sheltered the surviving Great Ghost Tribe, cautiously accepted Loina into the faction, and pursued cooperation with the Lizardmen against the Orc army 125 157. Following the conflict with the Orc Lord and a duel with Dwarf King Gazel, Rimuru established the Jura Tempest Federation and formed an alliance with the Dwarf Kingdom of Dovagoon; the central city was named “Rimuru” in Rimuru's honor 199 205.

Rimuru later defended the federation against the Great Storm Monster, but recognized that its Magic Element reserves and Super Regeneration exceeded what Rimuru's forces could overcome alone. Rimuru called on Lu Minghao and Milim for help, abandoning any intention to save the monster's host, Fubio, after recalling Fubio's repeated attacks on Rimuru's people 214.

Following the deaths of Shion and Gobta, Rimuru retaliated against the human army responsible, awakened as a True Demon Lord, and restored the fallen subordinates. Rimuru subsequently faced Clayman's campaign against Tempest and the Beast Kingdom, aided by an alliance with the Realm of Gluttony 310 312.

When Lu Minghao destroyed the Material Realm in response to Rimuru's death before reincarnation, Rimuru joined Guy Crimson and Milim in investigating the event. Lu Minghao later altered Rimuru's soul memories and body into a feminine form; after a month away, Rimuru returned to Tempest with Cynthia, identified as Rimuru's child with Lu Minghao 326 327 328.

Appearance

Rimuru's natural body is that of a Slime. Before being named, it was sky-blue; Veldora's naming caused it to turn gold during evolution 88. Rimuru commonly adopts a youthful human appearance through Mimicry.

• Long silver-blue or sky-blue hair 122 125 328
• Golden eyes 122
• Human guise initially resembles a thirteen- or fourteen-year-old girl, despite Rimuru being genderless 122
• Can manifest wings in aerial combat 214
• After Lu Minghao's intervention, Rimuru's androgynous appearance changed into that of a blue-haired girl with softer facial features and feminine physical traits 327 328

Personality

Rimuru is compassionate and protective toward the people under Rimuru's care. Rimuru offers food, shelter, and a place in the faction to displaced survivors, and shows genuine concern when Aileen loses control of the Original Sin of Gluttony 125 186. This mercy extends even to enemies: after awakening as a True Demon Lord, Rimuru supports sparing Mulan despite objections from subordinates 310.

As a ruler, Rimuru favors diplomacy and alliances over unnecessary conflict. Rimuru considers cooperation with the Lizardmen, agrees to Gazel's duel to settle a dispute, and avoids escalating tensions with Demon Lord Carrion after defeating Fibio 157 204 210. Rimuru also learns to recognize when personal strength is insufficient, requesting Lu Minghao and Milim's help against the Great Storm Monster rather than continuing a losing battle alone 214.

Rimuru is noticeably shy around Lu Minghao, becoming flustered by his physical closeness and struggling to understand the resulting feelings 201 203. Despite being naturally kind, Rimuru becomes less naïve after repeated attacks on Tempest, ultimately deciding not to save Fubio 214.

Abilities & Skills

Great Sage

Rimuru's Unique Skill, Great Sage, provides analysis, appraisal, tactical support, and internal guidance.

• Analyzed the Infinite Prison and searched for a method to rescue Veldora 88
• Detected the Upper Demon-level Magic Element reaction surrounding Loina 125
• Identified the Great Storm Monster's Super Regeneration and later determined that Fubio was its host 214
• Assisted Rimuru in controlling the body while preparing the skill [Lightning God Thunder] against the Orc Lord 199

Predator

Predator allows Rimuru to consume and contain targets or powers.

• Initially failed to consume the Infinite Prison; the extending tentacle exploded, though Rimuru's body restored itself 88
• Successfully engulfed the Infinite Prison as part of the plan to free Veldora 88
• Stripped and sealed the portion of Aileen's Original Sin of Gluttony that had not fully fused with her 186
• Could not safely remove the power already fused with Aileen, as forcibly doing so would have killed her 186

Mimicry and Slime Physiology

Rimuru can alter form while retaining the advantages of a Slime body.

• Takes a human form capable of tasting food, allowing Rimuru to enjoy roasted meat for the first time 125
• Reverted to Slime form to evade the Great Storm Monster's Magic Cannon through the drastic reduction in body size 214
• Withstood the Great Storm Monster's scale storm through the physical-damage immunity characteristic of the Slime form 214
• Can restore the body after damage sustained during Predator's failed attempt on the Infinite Prison 88

Combat Magic and Mobility

Rimuru combines close-quarters combat, elemental attacks, flight, and teleportation.

• Uses a longsword coated in black flames; decapitated the Orc Lord with a rapid sword strike 199
• Prepared [Lightning God Thunder] against the regenerating Orc Lord 199
• Fired a combined black-flame and lightning pillar at the Great Storm Monster 214
• Flies with manifested wings and can use Spatial Transfer to rapidly travel to allies or distant locations 157 214 326
• The Great Storm Monster's superior Magic Element reserves and Super Regeneration exhausted Rimuru over a prolonged fight, requiring outside assistance 214

Equipment / Weapons / Items

• Longsword — Used alongside black flames during Rimuru's battle with the Orc Lord 199
• Perfect Recovery Potions — Available to Rimuru's forces during the Great Storm Monster battle, allowing injured combatants to return to the fight 214

Relationships

• Veldora Tempest — Rimuru's first friend after reincarnation. They exchanged names as equals, and Rimuru undertook the task of freeing Veldora from the Infinite Prison 88 194.
• Lu Minghao — Fellow reincarnated Slime, close friend, and later Cynthia's other parent. Rimuru is frequently shy around him, though Lu Minghao's hidden actions and methods sometimes trouble Rimuru 195 203 326 328.
• Milim Nava — Fellow Demon Lord and friend. Rimuru initially feared the destruction Milim might cause, but allowed her to live in the central city under conditions against harming residents or destroying the town 206 209.
• Benimaru — Trusted subordinate and military leader who advises Rimuru on threats, alliances, and the Lizardmen 157 214.
• Souei — Trusted scout and operative. Rimuru relies on Souei to investigate threats and negotiate with the Lizardmen through their mental link 157 186.
• Aileen — Human ally whom Rimuru saved from full corruption by the Original Sin of Gluttony, leaving her with controllable residual power 186.
• Cynthia — Rimuru's child with Lu Minghao; Rimuru introduces Cynthia to Tempest after returning from a month-long absence 328.