Chaldea

Biodata

Feature	Value
Name	Chaldea (迦勒底)
Alias(es)	Human Order Preservation Agency; Human Order Preservation Institution 166 194
Affiliation	Initially an Animsphere-family institution; later independent of the Clock Tower 62 194
Occupation/Role	Human Order preservation, Singularity investigation and subjugation, Spiritron transfer, and administration of the Soul World 80 103 204
Status	Active 286
First Appearance	Chapter 56

Background / History

Chaldea was co-created by Marisbury Animusphere and Rin Tohsaka to recruit talented people from around the world and strengthen the institution. Rin's private funding accelerated its development, and it was initially an institution entirely belonging to the Animsphere family. 62 157

After six years of development, Chaldea completed its Fate System on the same day Rin completed her Spiritual System. The project included an inner research facility, survival-pod experiments, and a Servant project made smoother by Rin's Blank Spirit Foundation data. 62

Chaldea's first Spiritron transfer was carried out in 2015 using the completed Spiritron Calculation Device, Trismegistus, targeting the 2004 Fuyuki Holy Grail War. It subsequently began responding to multiple Singularities and the wider threat of Humanity Incineration. 80

Following an explosion in the control room, Rin, Marisbury, and Olga Marie were transferred into a Singularity. Da Vinci assumed temporary command, placed Chaldean Masters in cryostasis, repaired damaged equipment, and restored communications with Rin. 87

Chaldea later deployed its Spiritual Computer and entered the Soul World through imaginary space. The institution itself disappeared from its former location, leaving behind an observation device while the expanding Spiritual World connected normally to the Spiritron Sea and Pan-Human History. 103 189

As Chaldea absorbed or relocated communities from Singularities, its Soul World became home to realms including Egypt, France, Tokyo, Rome, and Britain. Its growing population and resources also produced internal factions competing for influence. 127 133 174

Organization and Leadership

Position / Group	Known members or role	Notes
Director	Marisbury Animusphere; later Rin Tohsaka	Marisbury was identified as Director while Rin served as Vice-Director; after his death, Rin was recognized as Director. 76 87
Vice-Director	Rin Tohsaka; later Olga Marie	Rin identified herself as Vice-Director under Marisbury; Olga Marie was called Vice-Director after the control-room explosion. 76 87
Founding core	Rin, Touko Aozaki, Leonardo da Vinci	The three are described as Chaldea's founding “iron triangle” and its absolute core leadership. 174
Temporary command	Leonardo da Vinci	Assumed control during Rin's absence and directed repairs, personnel, and communications recovery. 87
Acting leadership during Rin's disappearance	Touko Aozaki and Da Vinci	Touko made final decisions in Rin and Da Vinci's absence; she later gained effective control over most of Chaldea and began an internal purge. 174 221
Masters and exploration teams	Fujimaru Ritsuka, Mash Kyrielight, Team A and other candidates	Chaldea trains Masters for Spiritron traversal and dispatches assault and exploration teams into Singularities. 81 222
Combat forces	Heroic Spirits, magi, ordinary soldiers, Dead Apostles, combat personnel, and Touko's puppets	Chaldea can mobilize forces from its constituent Soul World nations alongside its own personnel. 103 180

Facilities and Systems

System / Facility	Function	Notes
Fate System	Supports Chaldea's Servant project and Fate Summoning.	Completed after six years; Chaldea successfully initiated Fate Summoning after communications were restored. 62 87
Trismegistus	Spiritron Calculation Device.	Used during Chaldea's first documented Spiritron-transfer operation. 80
Spiritron transfer system	Sends personnel into Singularities.	Requires time anchoring under normal conditions; Fujimaru and Mash can transfer even without it due to their exceptional compatibility. 80 282
Spiritual Computer	Created and deployed the first phase of the Soul World.	Begun when Chaldea was founded; its deployment connected the Soul World to the Spiritron Sea and Pan-Human History. 103 274
Phenomenon Record Computer Demon · Laplace	Super spiritual computer and analytical system.	Originally created the first Soul World phase; Da Vinci later incorporated Great Qin and Servant Universe technology into it. 274
Spiritron Sea	Magical-energy reserve for transfers and Heroic Spirits.	Chaldea can convert absorbed Singularity matter into stored spiritrons; during the R'lyeh operation, it expended the reserve to give fighting Heroic Spirits near-infinite magical energy. 176
Temple of Heroes	Base or gathering point for Chaldea's Heroic Spirits.	Houses Heroic Spirits whose power surpasses Mash's in combat capability. 112
Automated Doll Production Lines	Mass-produces combat automatons from stockpiled materials.	Deployed to support the Clock Tower against the Great Qin Empire. 196

Soul World

The Soul World is Chaldea's spiritron-based domain, reached through imaginary space. Its hidden imaginary space is a collective projection of the inner worlds of countless living beings; Chaldea itself entered the Soul World and attained a spiritron state. 189

Realm / population	Status within Chaldea
Egypt	A new Egyptian dynasty was established under Cleopatra. 133
France	Mobilized alongside other Soul World nations during Chaldea's highest alert. 180
Tokyo Metropolis	Open to all Chaldea members and governed by Kiritsugu Emiya; humans and Dead Apostles coexist there. 133
Rome and Britain	Constituent realms mobilized alongside Egypt, France, and Tokyo during emergencies. 180
Ruined Norse world	Converted into spiritrons and taken by Chaldea's system to establish the second Singularity's human foundation. 132
Great Qin Empire	Relocated to a suitable planet in the universe rather than annexed; Qin Shi Huang recognized Chaldea as an eternal ally. 204 208

Operations and Capabilities

Singularity Response

• Conducts reconnaissance, Spiritron transfers, assault deployments, and reinforcements across Singularities. 80 222
• Can dispatch multiple assault teams and place additional teams on 24-hour standby during major crises. 232
• Uses Chaldean detection equipment to scan Singularities, analyze enemy energy levels, and collect battlefield intelligence. 198 243
• Recruits, negotiates with, or captures powerful local figures and Heroic Spirits to expand its operational strength. 173 213

Large-Scale Mobilization

• Can activate the highest alert level, release reserve supplies, and mobilize personnel from every Soul World realm when Rin is endangered. 180
• Fielded nearly one-third of its high-end combat power for the operation involving Cthulhu. 174
• Can support Heroic Spirits with vast Spiritron Sea reserves, though this is a major resource expenditure. 176
• Maintains combat personnel, puppets, magical barriers, ships, and the Queen Fleet for military operations. 103 190

Relocation and World-Building

• Can convert a damaged world into spiritrons for capture by its system. 132
• Has transferred nations and populations into the Soul World rather than treating them as annexed territories. 154 204
• Arranged the Great Qin Empire's relocation to another planet to preserve its people. 204 208

Limitations and Internal Issues

• Chaldea's operation is closely tied to Rin: when her connection to the Soul World was nearly severed and her clone was recalled, the core shut down and high command lost its special permissions to manage the Soul World. 232
• Rin's disappearance caused some Heroic Spirits to ignore Chaldea's commands, delaying exploration-team deployment and bringing the organization close to civil conflict. 224 232
• Communication can be disrupted by external interference; in one case, Chaldea could only intermittently communicate with Rin by expending massive magical power. 266
• Even after communications with Rin were re-established, Spiritron transfer support could remain unavailable because time anchoring had not been completed. 275 282
• The Soul World's relative safety encouraged factions within Chaldea to seek power and benefits rather than prioritize the outside world's survival. 127
• Touko's later consolidation of authority included a purge of personnel opposing her Creation plan, causing internal unrest and the covert removal of hundreds of people. 221

Relationships

• Animsphere family — Chaldea initially belonged entirely to the family and was directed by Marisbury Animusphere. 62 76
• Rin Tohsaka — Co-founder, later Director, and the institution's central operational figure; Chaldea's control over the Soul World is heavily dependent on her and her clones. 157 232
• Clock Tower — Formerly connected through Marisbury and Rin, but Chaldea became independent; later conflicts led the Clock Tower to designate Rin for sealing. 194 212
• Touko Aozaki — Founding-core member who took command during leadership crises and later consolidated control over most of Chaldea. 174 221
• Leonardo da Vinci — Founding-core member, technical leader, and temporary commander during the control-room crisis. 87 174
• Soul World nations — Egypt, France, Tokyo, Rome, Britain, and other transferred populations provide personnel and resources during large-scale mobilizations. 133 180
• Great Qin Empire — Relocated by Chaldea to a planet in the main universe; Qin Shi Huang declared Chaldea an eternal ally. 208
• Demon God Pillars — Enemies that openly hate Chaldea and have repeatedly sought to destroy it. 151 166

Notable Quotes

“No! We are from the Human Order Preservation Institution, Chaldea, not the Clock Tower!” 194

“By the authority of the Chaldea Director, I order all personnel to evacuate to the nearest ship.” 190