Rimuru

Biodata

Feature	Information
Name	Rimuru Tempest
Alias(es)	Jiang Rui; Tempest Monarch; Tyrant Rimuru; Magician; Holy Son
Species/Race	Slime; Void creature; Heroic Spirit form
Affiliation	Sprout special squad; Light Chasers; R'lyeh; Truth Society; Clock Tower
Occupation/Role	Captain of Sprout; Fourth Mizukage; Lord of the Clock Tower; Rin Tohsaka's Servant during the Holy Grail War
Status	Active
First Appearance	125

Power Progression

Stage / Realm / Level	Chapter	Notes
Sequence 6 — Voidspawn, King of Gluttony	546	Chose the Void path over Time because of its lower cost; gained Void-related characteristics, including the ability to enter the Void while resisting its erosion.
Sequence 5 — Triune Demon Lord	832	Reached the pinnacle for demonic beings and underwent a godhood-oriented promotion. Demon Lord Edict evolved into Void Kin, granting him the Aberrant kin race; he also gained Dream Lord and the Triune Demon Lord characteristics.

Background / History

Rimuru participated in a previous Holy Grail War, won it, and abandoned the Grail. In the process, he obtained the Third Magic, Soul Materialization, and became known as the Tempest Monarch. His earlier war also involved the destruction of the Fire Foxes, leaving Red Fox as their sole survivor. 725 732

In Academy City, Rimuru cultivated connections with Saten Ruiko and later allied with Nine Tails after they fought alongside one another. He used the power of destiny against Kamijou Touma and World Rejecter, ultimately killing Touma, swallowing his corpse, and enduring World Rejecter's purification in slime form. 320 357 541 543

After becoming a Sequence 6 Voidspawn, Rimuru formed the autonomous Light Chasers squad Sprout. He recruited Yuki Onna and intended for his scattered allies and recruits to grow into a broader force under his leadership. 546 556

In the Naruto world, Rimuru became the Fourth Mizukage after defeating the Third Mizukage with a water-dragon Gatling cannon. He sought peace for the Land of Water while pursuing vengeance for Ito Rei, including plans against the Lands of Earth and Lightning. 587 590

Rimuru later entered the Type-Moon world under a contract with Alaya and was summoned as Rin Tohsaka's Servant. He revealed himself as the Tempest Monarch, guided Rin through the Holy Grail War, killed Caster, obtained Saber as his Servant, and used the Third Magic to kill and resurrect Illya in a healthier body. 705 725 772 776

Appearance

Rimuru is repeatedly described as petite and soft-looking, though his combat transformations can radically alter his presence.

• Often perceived as a small, youthful figure. 325 555
• Can revert to a slime form. 543
• His True Name Liberation manifests black demonic mist, golden hair, golden eyes, and overwhelming Demon Might. 677
• His Heroic Spirit Transformation is accompanied by rising starlight and golden threads of faith. 783

Personality

Rimuru is strategic, calculating, and highly conscious of both personal strength and political influence. He prefers alliances and long-term positioning over becoming a celebrated but disposable mercenary force, and he actively invests resources into his followers and team. 556 639

He can be ruthless toward enemies, willing to kill opponents or manipulate them when he believes it necessary. At the same time, he displays restraint when persuaded by trusted allies, showed mercy to the Raikage at the Third Mizukage's request, repaired Academy City after the World Rejecter crisis, and offered Illya a future beyond her artificial body. 601 550 776

Rimuru is also playful, boastful, and fond of psychological pressure. He enjoys provoking opponents, testing unfamiliar abilities, and humiliating weaker enemies with deliberately excessive displays of control. 720 732 782

Abilities & Skills

Devouring

Rimuru can consume beings, equipment, domains, and power-related phenomena, then assimilate or reproduce what he has taken.

• Swallowed Kamijou Touma's corpse during the World Rejecter incident. 543
• Intended to devour Mech Country and use its domain to create a replacement for Zhang Yutong. 676
• Devours machinery through black mist and can parse Mech Country permissions. 679
• Can absorb and replicate enemy equipment, including the Mech Warrior's armor. 680

Copying and Replication

Rimuru can reproduce abilities, weapons, fighting styles, and Noble Phantasms after understanding or making contact with them.

• His ability to copy living espers' powers was considered significant enough to draw Aleister's attention. 474
• Copied Heracles' axe-sword and fighting style during the Holy Grail War. 720
• Can copy enemy Noble Phantasms. 720
• Contact with Medusa gave him an unusual capacity to understand her in detail. 753

Void and Demon Lord Authority

Rimuru's main sequence grants Void-oriented survival, command, and kinship abilities.

• Enter the Void allows him to enter the Void in crisis, at the risk of Void erosion. 546
• Demon Lord Edict originally let him command and forcibly rule monsters weaker than himself. 832
• Void Kin evolved from Demon Lord Edict and grants him the Aberrants as a kin race, classified by the Extraordinary Space as “Purified.” 832
• Dream Lord grants authority over dreams and the ability to alter reality through them. 832

Time and Space

Rimuru's advancement path centers on acquiring the laws of Space and Time.

• His Sequence 5 Master of Time and Space characteristic makes time-space abilities cost no energy wherever his will reaches within a Territory, God Realm, possession, or descent. 832
• He can fold space, mirror and translate regions, accelerate himself, slow surrounding time, and prepare time-rewind effects. 834
• Escaped Phoenix with Luo through time travel, arriving roughly twenty thousand years in the past. 880
• His avatars possess Cross-World Descent, allowing him to actively control them across worlds. 848

Magecraft and the Third Magic

Rimuru is a master magus and bearer of the Third Magic, Soul Materialization.

• He is recognized as a famous Clock Tower monarch and the owner of the world's Third Magic. 725
• Materialized Berserker's modern body, though doing so consumed considerable mana. 777
• Killed and resurrected Illya, freeing her from the limitations of her artificial body. 776
• Uses water, earth, gravity, repulsion, ice, and other forms of magecraft in combat. 542 752 782
• Created a website that became the iconic dating template of modern magecraft and is associated with the Clock Tower's Modern Magecraft Department. 744 743

Unlimited Blade Works

Rimuru possesses and can deploy the Reality Marble Unlimited Blade Works.

• Revealed Unlimited Blade Works to Rin Tohsaka, shocking her. 739
• Its weapon replication makes it an effective answer to Noble Phantasms and opponents such as Saber. 782
• Assisted Shirou Emiya in successfully deploying his own Unlimited Blade Works. 757 758

Avatars and Clones

Rimuru can create independent combat bodies with shared growth.

• A clone fought Kanzaki Kaori while his original body reincarnated. 357
• His avatar attacked Mech Country and his clone rescued captured allies. 676
• Avatar upgrades grant Shared Inheritance, synchronizing improvements with the main body and other avatars. 848

Equipment / Weapons / Items

• Seductive Scythe / Sylphiel — divine artifact contracted to Rimuru; enhances both wielder and weapon, and can enslave souls through its passive effect. 691 776
• Demigod-grade pendant — crafted for Rimuru in R'lyeh before his Type-Moon mission. 705
• Demon Lord Armor — absorbed and replicated from the Mech Warrior; converts energy into high-output psionic energy. 680 682
• Enkidu — used to restrain Berserker and test his divinity. 720

Relationships

• Great Sage / Ciel — Rimuru's inseparable skill and thought core; they are born together, share life and death, and Rimuru trusts it to manage his other sequence advancements. 546 548
• Nine Tails — close ally and friend who first bonded with Rimuru after fighting beside him; they coordinate mentally in battle and share a playful, sibling-like rapport. 357 541 801
• Rin Tohsaka — Rimuru's Master in the Type-Moon Holy Grail War; their relationship becomes more open after he reveals his identity, and he mentors and protects her. 705 725 723
• Kihara Tsumiki — follower and trusted companion; Rimuru offered to convert her follower contract into a team contract and relies on her as part of his core group. 551 639
• Ye Xiaoqian — Sprout member and close companion; Rimuru is protective of her and reacted with immediate fury when she was endangered by Mech Country. 676
• Third Mizukage — former teacher and adviser; he abdicated after recognizing Rimuru's power and later persuaded him to spare the Raikage's forces. 587 601
• Illya von Einzbern — Rimuru killed and resurrected her, gave her a more human life, and offered her the freedom to pursue revenge. 776
• Shirou Emiya — rival, classmate from Rimuru's future, and subject of Rimuru's contract quest; Rimuru alternates between guiding him toward becoming a hero of justice and considering killing him. 739 765
• Saten Ruiko — Rimuru approached her in Academy City and remained influential in her life; after graduating from the Clock Tower, she still hoped to find him. 320 867
• The Unifier — influential ally whose alliance-building path Rimuru follows; the Unifier has intervened on Rimuru's behalf and encouraged contact with the Star Spirit clan. 556 822

Story Role / Major Arcs

• Academy City / World Rejecter arc — Builds ties with Saten Ruiko and Nine Tails, fights Kamijou Touma, kills him to stop World Rejecter, then restores the damaged world and departs. 320 357 543 550
• Light Chasers / Sprout arc — Secures an autonomous captaincy, establishes Sprout, and recruits Yuki Onna. 555 556
• Naruto arc — Becomes Fourth Mizukage, obtains the Three-Tails, and launches reprisals connected to Ito Rei's death. 587 590 603
• Mech Country arc — Rescues his captured companions, battles the Mech Country Lord and Mech Warrior, and plans to claim Mech Country for Zhang Yutong. 676 680
• Type-Moon Holy Grail War arc — Serves Rin, reveals himself as Tempest Monarch, confronts Servants and Masters, uses the Third Magic to save Illya, and resolves the temporal-loop dilemma around Shirou. 725 776 784
• Void godhood arc — Reaches Sequence 5, becomes a Triune Demon Lord, gains Void Kin and Dream Lord, and begins pursuing the requirements for further ascension. 832 867
• Mech Clan time-travel arc — Travels approximately twenty thousand years into the past with Luo in an attempt to help the Mech Clan. 880

Trivia

• Rimuru's team has a maximum capacity of twelve members. 801
• He considers the safest form of survival to be having no weaknesses—or eliminating everyone capable of threatening him. 602
• His first batch of equipment disrupted the Void equipment market, forcing rival blacksmith organizations to seek accommodation. 639
• He aims to become the ultimate God of the Void. 601