Emiya

Biodata

Feature	Details
Name	Emiya (Shirou Emiya; 衛宫)
Alias(es)	“Ally of Justice” (online); God Slayer; Sword Emperor / Sword Emperor Lucius; Bishop Pierre 1 119 360 381
Species/Race	Human/Hybrid; later a Dragon-Blood-baptized God Slayer wielding Divine Being power 114 317
Gender	Male
Affiliation	Chaldea; formerly active on the Hunter bounty platform and a collaborator of the Zhou Family 2 306
Occupation/Role	Bounty hunter, magus, Noble Phantasm forger, and Chaldea leader 2 134 306
Status	Active 470
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Sword Origin and basic Magecraft	1	Awakens the Origin of “Sword,” granting exceptional aptitude for weapon Projection; quickly becomes proficient in Reinforcement Magic.
Dragon Severing Platform activation	11	Projects and activates the incomplete Dragon Severing Platform, defeating Death Servants and their leader.
Original Noble Phantasm Projection	60	Successfully projects an Original Noble Phantasm independently; his Conceptual Armament reaches perfection.
Genuine Noble Phantasm forging	108	Learns that faith and fantasy are essential materials for Noble Phantasms, then reforges the Dragon Severing Platform through Yu the Great’s illusion.
Dragon Blood baptism	114	Gains a major increase in physical ability; his Mind’s Eye becomes more effective because his body can keep pace with its perceptions.
Perfected Unlimited Blade Works	238	Completes his Reality Marble as a personal sword landscape and gains a major weapon against Izanami.
Divine power inherited	252	Receives divine power from the dissipating Ibuki, who entrusts humanity’s future to him.
Susanoo manifestation	317	Reveals a divine armored form powered by Susanoo and defeats Heroic Spirit Swordmasters with overwhelming force.
Causality severance	331	Uses Susanoo’s divine blade to observe and sever the causal connection between Shuten-dōji and the Holy Grail.
Servant’s Shadow and King’s Path Breakthrough	376	Gains Joyeuse’s ability to summon temporary shadows of the Twelve Paladins and begins adapting Charlemagne’s residual power through Unlimited Blade Works.
Precognitive Mind’s Eye	392	Combines Mind’s Eye with neutral mental power from Heavenly Voice Assimilation, allowing instinctive battlefield precognition.
Temporary Sword Authority	396	Uses Longinus as a core and records Roman weapons and martial skills to forge “Sword Authority,” briefly treating Noble Phantasms as extensions of his body.
Four Heavenly Kings Chain Summoning	459	Uses Servant’s Shadow and Unlimited Blade Works to summon Zeus, Michael, Surtr, and Susanoo for a coordinated assault on Yao Bikuni.

Background

Emiya was originally a man from another world who suddenly transmigrated into Shirou Emiya’s body. He retained no inherited memories, but immediately discovered the body’s Magic Circuits, Mana, Reinforcement Magic, and Projection Magic. His Sword Origin gave him an unusual affinity for projecting weapons, though his earliest attempts failed when he lacked sufficient understanding of a weapon’s structure and history 1.

He began working through the Hunter website, a tolerated gray zone between the Mystic and Mundane Sides. There, he accepted ruin-exploration jobs, met Old Tang and Charlotte Göttingen, and searched for information on Noble Phantasms and ancient weapons 2 3.

His early travels brought him into contact with Shenzhou’s mixed-blood families and the Zhou Family. By demonstrating Reinforcement Magic and weapon combat, he earned the Zhou Family’s interest and eventually activated the Dragon Severing Platform, beginning his rise as a figure associated with dragon and god slaying 8 11 119.

Appearance

Emiya is a red-haired young man with a calm, restrained demeanor that conceals a sharp edge. At the time of his transmigration, he wore a color-blocked raglan shirt beneath a black-and-white Adidas jacket 1 134.

• Dark red hair 1
• Often carries or manifests bladed weapons 1 135
• Uses disguises when operating within Singularities, including Bishop Pierre and Sword Emperor Lucius 360 381
• His Sword Emperor guise uses illusion magecraft to alter his hairstyle, clothing, demeanor, and Spirit Origin signature 387

Personality

Emiya is intensely self-driven. With no inherited knowledge to rely on, he repeatedly studies, tests, and refines his Magecraft on his own, viewing the sword itself as his most suitable teacher 1 134. He is practical about danger and wary of institutions such as the Clock Tower, recognizing that his ability to project Noble Phantasms or manifest Unlimited Blade Works could make him a target for a Sealing Designation 3.

Despite his growing reputation, he dislikes excessive attention and rejects grandiose descriptions of himself 135. He is also protective of those around him: he shields civilians from Attila’s attack, helps Eriyi understand the world and learn Magecraft, and repeatedly takes the lead when allies are threatened 150 156 176 207.

In combat, Emiya favors observation, adaptation, and exploiting an opponent’s weaknesses over direct contests of power. His investigations into Aoiya, Odin, and the Holy Grail War likewise show a tendency to gather information before committing to a course of action 52 137 146.

Abilities & Skills

Reinforcement and Projection Magecraft

Emiya reinforces weapons by circulating Mana through them, increasing attributes such as sharpness and durability. His Projection Magic creates weapon replicas, with his Sword Origin allowing his projections to endure longer and consume less Mana than ordinary projected items 1.

• Can reinforce ordinary metal weapons to cut materials such as alloy steel 2
• Reinforces his own speed, strength, eyesight, and weapons during battle 8 50
• Can project weapons he has observed and understood 1 135
• Early Projection attempts fail without knowledge of a weapon’s concept, structure, and history 1
• Can identify ancient swords and attempt to replicate their information through observation 135

Noble Phantasm Forging

Emiya’s Projection evolved beyond imitation into the creation of genuine Noble Phantasms. He learned that a Conceptual Armament supplies the foundation, while Spiritual Remelting turns faith, legend, and fantasy into the spiritual substance needed to complete the weapon 60 108.

• Reforged the Dragon Severing Platform with Yu the Great’s illusion 108
• Tested the forging of Tai’a as a Noble Phantasm 113
• Studies Heroic Spirit techniques through Projection Loading 213
• Can create Pseudo-Noble Phantasms for explosive attacks or battlefield control 35 52
• His projections can impose heavy physical strain after powerful releases 213

Swordsmanship and Mind’s Eye

Emiya is an accomplished swordsman who uses Mind’s Eye to read combat patterns, predict actions, and respond to an opponent’s movements. He also studies Niten Ichi-ryū and incorporates techniques obtained through Noble Phantasm Projection 29 191 213.

• Defeated Old Tang in sparring despite Old Tang’s ability to predict his moves 29
• Identifies weak points in armor and weapon construction during battle 52
• Uses dual Mind’s Eye to navigate large-scale battlefield chaos 391
• Later evolves Mind’s Eye into instinctive precognition by combining it with mental power 392
• Uses flame-based movement and precognitive terrain reading to move at seemingly teleport-like speed 394

Unlimited Blade Works

Unlimited Blade Works is Emiya’s Reality Marble: a sword-filled inner world created from his forging experience, ideals, and will. Its perfected landscape differs from other known versions because it reflects his own personal path rather than another Emiya’s worldview 217 238.

• Allows large-scale projection and control of swords and Noble Phantasms 238 393
• Causes Servants’ weapons to resonate with the Sword Realm, increasing its power 393
• Can be maintained for half a day or longer after Emiya becomes a God Slayer 380
• Serves as the basis for his Sword Training Ground and Noble Phantasm modification research 376 379
• Was used in an attempt to isolate Izanami from the Yahirodono and sever her connection to the divine palace 240

Divine Authority and Causality Manipulation

After receiving divine power, Emiya can manifest Susanoo-derived armor and wield divine weapons such as the Sword of Kusanagi. His body remains a limiting vessel: acquiring additional Authorities broadens his options more than it directly multiplies his output 317 425.

• Uses Susanoo’s divine armor and blade against Heroic Spirit Swordmasters 317
• Wields the Sword of Kusanagi and its destructive, karma-severing properties 311 321
• Uses black Divine Flames for both offense and defense against the Snake God 328
• Learns to perceive and sever causal links, including Shuten-dōji’s link to the Holy Grail 331
• Forged Sword Authority with Longinus as its core to block Pashupata and Vasavi Shakti 396

Servant’s Shadow

Through Joyeuse and Charlemagne’s residual Spirit Origin, Emiya can summon shadows of the Twelve Paladins. The technique is powerful but initially unstable, as the shadows disappear shortly after attacking 376.

• Summons Paladin shadows through Mana channeled into Joyeuse 376
• Shadows persist longer if they do not attack 376
• The Sword Training Ground gathers participants’ mental energy to strengthen summoned shadows 379
• Can incorporate Servant’s Shadow into larger Chain Summoning rituals 459

Equipment / Weapons / Items

• Dragon Severing Platform — A Zhou Family treasure first activated in incomplete form, later reforged into a genuine Noble Phantasm 11 108
• Tai’a Sword — A Noble Phantasm Emiya tested and refined after gaining the ability to forge such weapons 52 113
• Sword of Kusanagi — A divine sword used in normal attacks, causality cutting, and destructive Authority techniques 311 321
• Longinus — A God-Slaying Spear empowered by Christian faith and later used as the core of Sword Authority 373 396
• Joyeuse — Charlemagne’s Holy Sword, containing residual spiritual power and the basis for Servant’s Shadow 370 376
• Pseudo-Noble Phantasms — Disposable projected weapons used for explosions, ranged attacks, and Fantasy Collapse-style tactics 35 52 192
• Grappling gun — Used to escape Odin after leaving explosive projected weapons behind 52

Relationships

• Charlotte Göttingen — Online acquaintance and alchemical collaborator. She recognizes Emiya’s extraordinary forging potential and later fights beside him with her Mercury Mystic Code 2 176.
• Old Tang / Norton — Bounty-hunting partner and friend whose true identity is the Dragon Clan King Norton. Their sparring and demonstrations develop into mutual respect 3 26 29 35.
• Wa Lord — Zhou Family leader, ally, and a key contributor to Emiya’s training systems and battlefield enhancements. She later assists with optimizing Unlimited Blade Works and Sword Authority 11 380 396.
• Nono — Close companion whom Emiya treats with patience despite her erratic behavior and trauma-driven suspicions 74 113 142.
• Uesugi Eriyi — A protected companion and student. Emiya explains the supernatural world to her, encourages her after the loss of her Authority, and offers to teach her Western Magecraft 150 170 207.
• Xia Mi — Ally and Blood Oath partner. She supports Emiya’s plans involving Ushigoezen and the Earth Vein, while he shares historical and magical knowledge with her 130 238 243.
• Gen Shio — Initially a cautious contact within the Yaqi Eight Families; Emiya’s intelligence and sword knowledge impress him, and they become allies against the Holy Grail War’s threats 135 137 150.
• Minamoto no Yorimitsu / Ushigoezen — A Servant ally with whom Emiya develops a mother-son-like bond. Her connection to Ushigoezen is tied to Emiya’s Susanoo-derived divine armor 238 317.
• Mash Kyrielight — Chaldea companion who views Emiya as an admired senior; Emiya treats her like a younger sister and works closely with her during the Singularity crisis 314.
• BB — Technical collaborator who assists with causality analysis, Noble Phantasm research, and the development of Emiya’s training systems 331 376 379.

Story Role / Major Arcs

• Transmigration and Hunter activities — Emiya awakens in Shirou Emiya’s body, develops Magecraft, and takes Hunter jobs while searching for ancient weapons and Noble Phantasms 1 2.
• Shenzhou and Dragon Severing Platform — He proves his Magecraft to the Zhou Family, joins their operations, and activates the Dragon Severing Platform against Death Servants 8 11.
• Odin Incident — Emiya battles a suspected Spiritual Evocation of Odin, identifies its weaknesses, and escapes after damaging it and destroying its battlefield 50 52.
• Tokyo and the Yaqi Eight Families — His knowledge of ancient blades brings him into contact with Gen Shio and the Yaqi Eight Families, while his intelligence reveals Aoiya’s connection to Death Servant trafficking and a possible Holy Grail War 135 137.
• Tokyo Holy Grail War — Emiya protects civilians from Attila, investigates Shadow Servants and the mirror world, and guides inexperienced Masters such as Asou Shin through the conflict 156 176 190 192.
• Izanami conflict — He perfects Unlimited Blade Works, forms a Blood Oath with Xia Mi, and prepares to trap Izanami inside his Reality Marble to prevent her ascension 238 240.
• God Slayer aftermath — Emiya’s battle with a Divine Being causes destructive climate effects across the Pacific, making him a figure of concern to the Holy Church and other global powers 253.
• Chaldea and the Singularity crisis — As Chaldea’s leader, Emiya investigates the corrupted Holy Grail War, fights Heroic Spirit Swordmasters, and declares war on the Demon Gods after learning humanity has been displaced into Imaginary Space 306 317 352.
• Frankish and Roman Singularities — Operating under the identities of Bishop Pierre and Sword Emperor Lucius, Emiya investigates Heavenly Voice Assimilation, confronts Emperor Karl, and later reshapes the battlefield in Rome with Unlimited Blade Works and Sword Authority 360 370 381 393 396.
• Later Chaldea campaigns — Emiya continues expanding Servant’s Shadow and Chain Summoning techniques, leading large-scale assaults against threats such as Yao Bikuni 376 459.

Notable Quotes

“Not a weapon, but a person.” 229

Trivia

• Emiya’s Hunter account name is “Ally of Justice.” 1
• He practiced Reinforcement Magic on cheap swords and knives purchased online or from low-end shops rather than expensive alchemical weapons 2.
• A Yaqi Eight Families investigation records him as a culinary genius, archery-club ace, and former high-jump enthusiast, though Gen Shio considered these details irrelevant to Emiya’s true abilities 126.
• He possesses extensive knowledge of cooking and critiques cuisine according to the overall dining experience rather than mere satiety 136.