The Holy Church (聖堂教会, Seidō Kyōkai?), also referred simply as "the Church," is the hidden side of the Roman Catholic ChurchWP that specializes in the hunting of heresy.[1] Compared to the public side of the Holy Church that treats heresies as if they do not exist because those who teach the word of God must not acknowledge that which runs counter to their doctrines, the Holy Church contains the zealots who feel the heresies should be more proactively destroyed. They are a major force that has a tenuous relationship with the Mage's Association.[2]


The primary goals of the Catholic Church are to preach the love of God and help the sick and poor, but the side of the organization known as the Holy Church specializes in the elimination of heresy. Those who insult God, kill people, mislead the public, and twist the very laws of nature by occult means fall under the umbrella of “heretics” and are targets for the Church’s forces.[1] The Church understands its mission as being to guide humanity, becoming involved in conflicts such as the Holy Grail War with the ulterior motive of “keeping the peace for mankind”.[3] Like the Mage’s Association, the Church attempts to monopolize the control of Mystery, but the organizations greatly differ in this respect. While the Association seeks to conceal Mystery from the public and preserve it, the Church attempts to “properly manage” it, destroying any Mysteries they deem as heresy.[2] To this end, the Executors are tasked with both the elimination of heretics and the regulation of Mysteries that fall into the hands of the populace.[4] Association magi see the Church’s goal as to destroy all Mystery outside its own,[5] with some even believing that it desires to eliminate Mystery itself.[6]

Unlike the Mage’s‌ ‌Association‌, which‌ ‌is‌ ‌a‌ ‌loose‌ ‌collection‌ ‌of‌ ‌collaborators‌ ‌unified only by the goal of “reaching‌ ‌the‌ ‌Root”,‌ ‌the‌ members of the Church‌ ‌share‌ ‌a‌ ‌common‌ ‌ideology.‌ ‌The‌ ‌singular bond of faith puts the Church above‌ ‌the constant ‌infighting‌ ‌and‌ ‌atmosphere of mutual‌ ‌distrust‌ found in the‌ ‌Association.‌ ‌While ‌Church’s‌ ‌members‌ disagree on and ‌debate‌ ‌their‌ differing ‌interpretations‌ ‌of‌ ‌doctrine,‌ ‌ this amounts to nothing more than reasonable discussions on how to become better people.[1] One internal faction of the Church is the Conservative Faction, a typical member of which can be seen in Sister Ilumia. Members of the Conservative Faction have zero tolerance towards Association magi and others the Church considers heretics, not even treating them like fellow human beings. While these extremists currently coexist with more tolerant factions of the organization, several centuries ago such beliefs were more common in the Church, and those within the organization who opposed them were seen as little better than the heretics.[7]

While the Church has spent most of its history in open and violent conflict with the Association, in recent years the organizations have come to a truce, forming a non-aggression pact. Despite this, conflict often occurs off the record, and those of the Church and Association frequently attempt to kill one another whenever they are given the chance.[1][8][9] When faced with existential threats to mankind such as vampires, the two organizations are willing to begrudgingly put aside their differences and outright cooperate with the Association.[2]

The Church holds a great level of animosity towards Vampires.[10] There is no great reason for specifically hunting them down with such fervency other than that they are a group that only likes humans. Beings that are not human can be controlled, so they don't need to be made into enemies. They can coexist with completely different races, but Vampires are beings born from humans. They carry the possibility of "infection" to other humans, so they are treated like diseases that need to be cut off.[11] Arcueid Brunestud describes the Church as humanity’s “defense mechanism” against hostile species such as vampires, and the primary reason that vampires conceal their existence from humans. The Church mainly began to take this view with the founding of the Burial Agency, as it was created for the very purpose of killing them. If they don't take such a stance, it has no real reason to exist. As their faith is very shallow, they have a necessity to affirm the importance of their roles. That same stance continued to escalate within the Church since then.[11]

The Thaumaturgical Theory of the Church, in form of its Holy Sacraments, is the most widespread and well stabilized in the world.[12][13][14] Hansa Cervantes boasts of the Church possessing “the cutting edge in all technology and Mystery”, exemplified by his body being 70% composed of cybernetic Mystic Codes intended for vampire-slaying.[3] While there are many in the Church who make use of magecraft, the organization as a whole is not fond of using that belonging to magic foundations outside its own,[5] considering Mysteries used by those outside its ranks to be heresies.[9] The Church views "magic" itself to be a heretical art, and as such does not refer to its Sacraments as a type of magecraft.[1][15] Officially the Church does not even teach any spells but the Baptism Rite, but this is just something they say to the public, as the Executors are taught practical magecraft, such as Reinforcement and telepathy, though they are all bundled up and given the name of “Sacraments”.[7] Agents of the Church that employ thaumaturgy generally avoid using common terminology preferred by magi, instead preferring euphemisms like “prayer power” in place of “magical energy”.[16] Those who do not follow the Eighth Sacrament are forbidden from using magecraft other than the Sacraments, and the higher up one is ranked in the Church, the more one is forbidden from contact with the impurity of heretical magic.[9]

Known members[]

Assembly of the Eighth Sacrament[]




Other members[]



Citeaux Abbey

Abbeys are monasteries that house individuals like Caren Hortensia. She was admitted to the Citeaux Abbey, but she was permitted to leave on errands pertaining to exorcism unlike the others in the abbey.[21] These monasteries are home to monastics such as monks and nuns who choose to live separate from society and take vows of poverty and chastity, but they serve a secondary purpose as locations for the training of Executors. For individuals like Noel who are forced to become Executors due to the contamination risks after being attacked by the Dead Apostle Ancestors, being sent to one can be almost like torture. Anyone admitted to an abbey must undergo an inspection of their chastity, which within the Church — at least when it comes to the Executors — refers not to sexual virginity, but the “purity” of the human body from spiritual corruption such as the curse of vampirism.[22]

Assembly of the Eighth Sacrament[]

The Assembly of the Eighth Sacrament (第八秘蹟会, Daihachi Hiseki Kai?) is a special agency made up of a group of special clerics charged with the research, recovery, and managing of holy relics scattered across the globe. The items called holy relics include the remains and blood of saints, the nails that crucified Christ, the holy cross, the thirty silver coins of Judas, and other items with the holy attribute. The members follow the "Eighth Sacrament" outside of the Sacraments of the Catholic ChurchWP, the seven graces that God bestows in the Catholic faith: Baptism, Holy Eucharist, Matrimony, Holy Orders, Confirmation, Penance, Anointing. It is a "Grace that doesn't Exist" in the rightful faith or a "power separated from the faith", meaning the members trained to retrieve the hidden relics do not fear being involved in heretical power such as magery to accomplish their goals. It is the lowest of the special agencies.[1]

One aspect of their job is to watch over any claim of the Holy Grail, which has great importance the doctrine of the Church. One such claim includes Fuyuki City's Holy Grail War. They send a supervisor from the agency, such as Risei Kotomine and Kirei Kotomine, to act as a mediator between the Church and the Mage's Association. As of the Fifth Holy Grail War, they are investigating the 726th claim of the Grail, and they are tasked with recovering it if it proves to be real, or disputing it if it proves to be false.[23] In reality, they already know it is not the genuine artifact, and would generally ignore a special device which seeks the "Root." The path leading to the root can be said to lead to the "outside" of the world, meaning that it will not bring any effect to the "inside." The Church only cares about the visible world, and finds the magi’s pursuit as a meaningless plan. The ability for the Holy Grail to realize wishes is "omnipotent", granting it unlimited, mysterious power to change even the "inside" of the world. Such a power could become an existence which threatens their belief, so they feel the need to keep it from falling into the wrong hands. They wish to guide the wish made with it, such as backing Tokiomi Tohsaka's "boring, meaningless wish." Tokiomi is one of the most right-winged magi, compared to others who would pursue the gifts of mundane riches, prestige, desires, power, all of which can be fulfilled "within" the world. He wishes to reach the Root, which has nothing to do with the "inside."[24]

Burial Agency[]

The details of the Burial Agency differ between Tsukihime and the Tsukihime Remake series.

Chivalric Orders[]

The Chivalric Orders are the Knights (騎士団, Kishidan?) that make up the main military body of each church. They only fight to defend holy ground, according to Nrvnqsr. It is one of the few groups that still uses halberds, but its use is dying out.[25] Riesbyfe is the captain of the Vestel Shield Knights and an official vampire hunter. She possesses the conceptual weapon "True Apocrypha Gamaliel", a pile bunker shaped like a string instrument. Some knights of the Chivalric Orders are also involved in training Executors.[7]


The executors of the church

The Executors (代行者, Daikōsha?)[26][27] are the heretic inquisitors of the Church established by the 120th Cardinal. They are not charged with the purpose of daemon exorcism, but rather have the task of demon killing and the destruction of other heretical beings. It is known as the bloodiest department of the Church, called the Shura's Den for its responsibility of punishing heresies. It takes a certain amount of willpower to be part of it, and being able to achieve the title of "Executor" signifies that one is a first-rate murderer that has passed brutal and pious training to become mankind's weapon. Kirei Kotomine was ten years old when he was made into an Executor, but he later changed positions a number of times.[28] They have varying specialties, including those specialized and geared for magus hunting, demon killing, or vampire slaying. Kirei Kotomine is an example of an Executor specialized in the hunting of magi.[8]

The Executors also follow the Eighth Sacrament, granting the permit to stray away from the rules of their religion as long as one thing, the name of the Almighty, is protected. They are followers that do not teach the words of the Lord, but act as His representative, His Executors, despite being mere mortals. They take part in trials that should have only been watched, and slay heretics that should have only been denied. They are those who should not have even existed, who dispel the demonic and hunt what does not exist not in the teachings of their Lord. The existence of demons has sometimes made man mistake the calculations of heaven as the powerlessness of heaven. They sought a miracle from their Lord in the incomprehensible work of the demonic, causing exceptions in the form of the Executors to be born.

They consider demons to be messengers of heaven according to their doctrine, making it so a priest teaching the words of God has no right to destroy them. They follow the idea that God is the one absolute, that which is supreme and that which is all, and that as The Holy Spirit, He is the creator of a perfect world. It is impossible for Him to allow the existence of demons to defile the world He created by violating His own children. Even with that ideal, it is a fact that they do exist, corrupting man and defiling the world, playing out miserable tragedies and comedies beyond the reasoning of man. That which ought not be taints the world of God, and so, they reasoned that even these demons, the corruptors of man, are a vital part of the world the Lord constructed and one of His precious creations. They simply follow that if it is the work of the holy to strengthen the goodness of man, then what strengthens the evil of man is the demonic. The Executors are those who hunt that which is not in their doctrine, meaning that they can not be held back by that doctrine, and allowing them to annihilate even Their Lord's own demonic creations. That is the one point that distinguishes them from exorcists.[29]

Most Executors are considered to be of low rank in the Church’s clergy, below bishops and cardinals, but have a high degree of autonomy in their actions. Even Mario Gallo Bestino, the grandson of Cardinal Laurentis with a high degree of control over the Church’s agents, lacks the authority to call the death penalty on an Executor such as Noel.[30] Among those who become Executors are ordinary humans who have had contact with The Twenty-seven Dead Apostle Ancestors and are rescued by the Church. Contact with the Ancestors makes one a potential contaminant or vector for vampirism, and the Church thus offers such individuals a choice between being quarantined in a convent, or taking up the role of an Executor. Noel is an example of such a person, and is one who chose the latter option.[31]


Exorcists (エクソシスト, Ekusoshisuto?), are a special kind of priests charged as "representatives" by the bishop of a diocese. They are a type of Executor not geared for heretic hunting, but rather answer pleas for help and visit those towns to exorcise daemons. While the mere likes of humans are no match for a mature daemon, the real problem for the visiting exorcists is the protection of the soul. The experience of daemon exorcism is said to be one that a person cannot withstand once again, making an iron faith more sought after than physical prowess. They don't fear daemons, but rather they fear the breaking of their will. The only known Exorcist to ever exorcise a mature daemon from a person is Mr. Dawn from the Burial Agency. The Church values people like Caren Hortensia whose body itself possesses an unusual property which is known as Masochistic Spiritualist Constitution;[21] if there is a person nearby who has been possessed by a daemon, her body will mimic the end effects that the daemon possession will eventually have on the possessed human.[32] As a result, exorcists employ her to act as a radar of sorts to find daemons.[21]

The Templars[]

The Order of the Templars (テンプル騎士団, Tenpuru Kishidan?) is a small but powerful faction in the Church that has only appeared in Fate/Prototype. Although they have a considerable amount of connections and allegiance to the Church, the Order of the Templars is often not considered a part of the Church. They are in truth a separate independent organization of their own and hold only loyalty to themselves. They are considered to be far more radical, bordering the line of terrorism in their activities, as they hire criminals to work for them or even join their ranks. They seem to specialize in heretic hunting and often lend some of their own heretic hunters to the church, when necessary. Sancraid Phahn is a member and one of their top Heretic Hunters.


  • Ash Lock (灰錠, Hai jou?) are Conceptual Weapons that are standard equipment for Executors. As they are easier to use than Black Keys, requiring minimum of training to unleash their devastating power, the majority of Executors prefer them. They come in a variety of forms, from armored gauntlets to small knives and crossbows, disguised as gloves or boots until the tag is removed, reverting them to their original form.[33]
  • Keys of Providence (摂理の鍵, Setsuri no Kagi?) are types of Conceptual Weapons used for purification,[34] which is the forcing of natural laws onto the vampire and baptizing their flesh to turn them back into ash. They open the structure of physical body and lock it back into its original form if the target was a Catholic during their human life, or if they have devoured or sucked the blood of a Catholic. They lack much of an effect if they were not Catholic, on the other hand, they will have some effect on a Christian vampire even if the user is a non-Christian. If both are believers of the faith, their power is absolute. Black Keys are types of Keys of Providence.
  • Holy Shroud
  • Relics of the Son of God (神の御子の聖遺物?) - Holy artifacts related to Jesus, typically recognized and managed by the Holy Church with the exception of things like the Fuyuki Holy Grail.[35]

Right Hand of Glory


  1. 1.0 1.1 1.2 1.3 1.4 1.5
    [v] Fate/complete material III: World Material - Theory of Magic - The two great forces in the Thaumaturgy world: The Holy Church, p.052

    Holy Chuch
    The‌ ‌Catholic‌ ‌Church‌ ‌that‌ ‌we‌ ‌know‌ ‌also‌ ‌exists‌ ‌within‌ ‌the‌ ‌world‌ ‌of‌ ‌‌Fate/stay‌ ‌night‌.‌ ‌Centered‌ ‌in‌ ‌western‌ ‌Europe,‌ ‌its‌ ‌influence‌ ‌stretches‌ ‌over‌ ‌the‌ ‌entire‌ ‌world.‌ ‌The‌ ‌primary‌ ‌missions‌ ‌of‌ ‌the‌ ‌Catholic‌ ‌Church‌ ‌are‌ ‌to‌ ‌preach‌ ‌the‌ ‌love‌ ‌of‌ ‌God‌ ‌and‌ ‌to‌ ‌help‌ ‌the‌ ‌sick‌ ‌and‌ ‌poor,‌ ‌but‌ ‌beneath‌ ‌this‌ ‌is‌ ‌a‌ ‌mysterious‌ ‌organization‌ ‌that‌ ‌pursues‌ ‌different‌ ‌goals‌ ‌—‌ ‌the‌ ‌Holy‌ ‌Church.‌
    The‌ ‌objective‌ ‌of‌ ‌the‌ ‌Holy‌ ‌Church‌ ‌is‌ ‌the‌ ‌extermination‌ ‌of‌ ‌heresy.‌ ‌The‌ ‌use‌ ‌of‌ ‌occult‌ ‌arts‌ ‌to‌ ‌insult‌ ‌God,‌ ‌to‌ ‌kill‌ ‌people,‌ ‌to‌ ‌beguile‌ ‌the‌ ‌public,‌ ‌and‌ ‌to‌ ‌twist‌ ‌the‌ ‌laws‌ ‌of‌ ‌divine‌ ‌Providence‌ ‌that‌ ‌govern‌ ‌the‌ ‌world,‌ ‌all‌ ‌fall‌ ‌under‌ ‌the‌ ‌umbrella‌ ‌of‌ ‌heresy‌ ‌and‌ ‌must‌ ‌be‌ ‌eradicated.‌ ‌However,‌ ‌heretics‌ ‌are‌ ‌powerful.‌ ‌Vampire‌ ‌fangs‌ ‌and‌ ‌magical‌ ‌bullets‌ ‌all‌ ‌make‌ ‌short‌ ‌work‌ ‌of‌ ‌human‌ ‌flesh.‌ ‌For‌ ‌this‌ ‌reason,‌ ‌the‌ ‌Church‌ ‌possesses‌ ‌trump‌ ‌cards‌ ‌such‌ ‌as‌ ‌Executors,‌ ‌knightly‌ ‌orders,‌ ‌and‌ ‌the‌ ‌Assembly‌ ‌of‌ ‌the‌ ‌Eighth‌ ‌Sacrament.
    The‌ ‌Church‌ ‌has‌ ‌long‌ ‌been‌ ‌engaged‌ ‌in‌ ‌bloody‌ ‌conflict‌ ‌with‌ ‌the‌ ‌Magic‌ ‌Association,‌ ‌but‌ ‌in‌ ‌recent‌ ‌times‌ ‌they‌ ‌have‌ ‌finally‌ ‌reached‌ ‌a‌ ‌state‌ ‌of‌ ‌peace.‌ ‌(Though,‌ ‌covert‌ ‌and‌ ‌private‌ ‌battles‌ ‌still‌ ‌occur.)‌ ‌In‌ ‌contrast‌ ‌to‌ ‌the‌ ‌Magic‌ ‌Association‌ ‌which‌ ‌is‌ ‌a‌ ‌loose‌ ‌collection‌ ‌of‌ ‌collaborators‌ ‌whose‌ ‌sole,‌ ‌absolute‌ ‌goal‌ ‌is‌ ‌to‌ ‌reach‌ ‌the‌ ‌Root,‌ ‌the‌ ‌Holy‌ ‌Church‌ ‌is‌ ‌a‌ ‌gathering‌ ‌of‌ ‌compatriots‌ ‌who‌ ‌share‌ ‌a‌ ‌common‌ ‌ideology.‌ ‌The‌ ‌unity‌ ‌among‌ ‌those‌ ‌of‌ ‌the‌ ‌Church‌ ‌who‌ ‌are‌ ‌connected‌ ‌by‌ ‌the‌ ‌singular‌ ‌bond‌ ‌of‌ ‌faith‌ ‌is‌ ‌far‌ ‌removed‌ ‌from‌ ‌the‌ ‌infighting‌ ‌and‌ ‌mutual‌ ‌distrust‌ ‌of‌ ‌the‌ ‌Magic‌ ‌Association.‌ ‌In‌ ‌this‌ ‌sense,‌ ‌the‌ ‌Church‌ ‌is‌ ‌a‌ ‌powerful‌ ‌organization.‌ ‌Although‌ ‌the‌ ‌Church’s‌ ‌members‌ ‌debate‌ ‌their‌ ‌interpretation‌ ‌of‌ ‌doctrine,‌ ‌these‌ ‌simply‌ ‌amount‌ ‌to‌ ‌reasonable‌ ‌discussions‌ ‌on‌ ‌how‌ ‌to‌ ‌become‌ ‌better‌ ‌people.‌ ‌

    •Executors,‌ ‌purgers‌ ‌of‌ ‌heretics‌
    Executioners‌ ‌of‌ ‌the‌ ‌Church.‌ ‌Pure,‌ ‌armed‌ ‌agents‌ ‌that‌ ‌carry‌ ‌out‌ ‌the‌ ‌Church’s‌ ‌denunciation‌ ‌of‌ ‌“heresies‌ ‌outside‌ ‌the‌ ‌doctrine‌ ‌of‌ ‌the‌ ‌Holy‌ ‌Church,”‌ ‌be‌ ‌they‌ ‌bloodsuckers,‌ ‌monsters,‌ ‌or‌ ‌magi.‌ ‌
    Although‌ ‌they‌ ‌do‌ ‌work‌ ‌with‌ ‌other‌ ‌parts‌ ‌of‌ ‌the‌ ‌Church,‌ ‌the‌ ‌task‌ ‌of‌ ‌Executors‌ ‌is‌ ‌not‌ ‌the‌ ‌purification‌ ‌of‌ ‌demons‌ ‌via‌ ‌exorcism,‌ ‌but‌ ‌rather‌ ‌execution‌ ‌—‌ ‌the‌ ‌direct‌ ‌destruction‌ ‌of‌ ‌demons.‌
    While‌ ‌the‌ ‌Executors‌ ‌have‌ ‌no‌ ‌doubt‌ ‌in‌ ‌the‌ ‌Church‌ ‌or‌ ‌God,‌ ‌the‌ ‌values‌ ‌and‌ ‌morals‌ ‌of‌ ‌many‌ ‌agents‌ ‌deviate‌ ‌from‌ ‌the‌ ‌norm.‌

    Kotomine‌ ‌Kirei‌ ‌is‌ ‌also‌ ‌an‌ ‌Executor‌ ‌of‌ ‌the‌ ‌Holy‌ ‌Church,‌ ‌and‌ ‌was‌ ‌affiliated‌ ‌with‌ ‌the‌ ‌Assembly‌ ‌of‌ ‌the‌ ‌Eighth‌ ‌Sacrament.‌ ‌His‌ ‌combat‌ ‌strength,‌ ‌which‌ ‌combines‌ ‌bājíquán‌ ‌and‌ ‌magic,‌ ‌is‌ ‌superhuman.‌

    •Magic‌ ‌and‌ ‌baptismal‌ ‌rites‌ ‌of‌ ‌the‌ ‌Holy‌ ‌Church‌
    Magic‌ ‌is‌ ‌viewed‌ ‌by‌ ‌the‌ ‌followers‌ ‌of‌ ‌the‌ ‌Church‌ ‌as‌ ‌a‌ ‌heretical‌ ‌art‌ ‌that‌ ‌should‌ ‌never‌ ‌be‌ ‌studied.‌ ‌However,‌ ‌it‌ ‌is‌ ‌permitted‌ ‌to‌ ‌learn‌ ‌the‌ ‌Church’s‌ ‌form‌ ‌of‌ ‌magic:‌ ‌“miracles.”‌ ‌These‌ ‌have‌ ‌been‌ ‌codified‌ ‌into‌ ‌simple‌ ‌rituals‌ ‌called‌ ‌baptismal‌ ‌rites.‌
    These‌ ‌rituals‌ ‌use‌ ‌the‌ ‌global‌ ‌foundation‌ ‌that‌ ‌is‌ ‌the‌ ‌Church’s‌ ‌doctrine,‌ ‌so‌ ‌they‌ ‌can‌ ‌be‌ ‌activated‌ ‌regardless‌ ‌of‌ ‌the‌ ‌caster’s‌ ‌physical‌ ‌location.‌ ‌Unlike‌ ‌other‌ ‌magics‌ ‌that‌ ‌use‌ ‌mystic‌ ‌energy‌ ‌to‌ ‌smash‌ ‌stones,‌ ‌baptismal‌ ‌rites‌ ‌have‌ ‌no‌ ‌power‌ ‌of‌ ‌physical‌ ‌interference.‌ ‌However,‌ ‌they‌ ‌exert‌ ‌tremendous‌ ‌power‌ ‌against‌ ‌spiritual‌ ‌bodies.‌ ‌
    A‌ ‌spiritual‌ ‌body‌ ‌that‌ ‌receives‌ ‌a‌ ‌rite‌ ‌of‌ ‌baptism‌ ‌is‌ ‌immediately‌ ‌compelled‌ ‌to‌ ‌sublimate‌ ‌by‌ ‌the‌ ‌word‌ ‌of‌ ‌the‌ ‌Lord,‌ ‌and‌ ‌returns‌ ‌to‌ ‌where‌ ‌it‌ ‌belongs.‌ ‌This‌ ‌is‌ ‌so-called‌ ‌exorcism,‌ ‌the‌ ‌purification‌ ‌of‌ ‌demons.‌ ‌

    Kýrie,‌ ‌eléison:‌ ‌When‌ ‌this‌ ‌holy‌ ‌seal‌ ‌bears‌ ‌the‌ ‌sacred‌ ‌scripture‌ ‌“Lord,‌ ‌have‌ ‌mercy,”‌ ‌it‌ ‌radiates‌ ‌the‌ ‌light‌ ‌of‌ ‌God.‌ ‌Wayward‌ souls‌ ‌are‌ ‌purified‌ ‌by‌ ‌its‌ ‌guiding‌ ‌light,‌ ‌and‌ ‌sent‌ ‌to‌ ‌the‌ ‌place‌ ‌where‌ ‌they‌ ‌belong.‌ ‌

    •Assembly of the Eighth Sacrament
    The remains and blood of saints, the nails that crucified Christ, the 30 silver coins of Judas, and other items with the holy attribute are call holy relics, and the special agency for collecting and managing these holy relics scattered across the globe is called the "Assembly of the Eighth Sacrament".
    "Sacraments" refers to the seven graces that God bestows in the Catholic faith: Baptism, Holy Eucharist, Matrimony, Holy Orders, Confirmation, Penance, Anointing. The "Eighth Sacrament" refers to the "Grace that doesn't Exist" in the rightful faith. Put into other words, this can also be said to be "power separated from the faith". In other words, the Assembly of the Eighth Sacrament is a group of special clerics who do not fear being involved in heretical power such as magery, and are trained for retrieving the hidden relics.

    •Burial Agency
    An‌ ‌armed‌ ‌organization‌ ‌composed‌ ‌of‌ ‌the‌ ‌Church’s‌ ‌most‌ ‌powerful‌ ‌members.‌ ‌In‌ ‌addition‌ ‌to‌ ‌its‌ ‌immense‌ ‌fighting‌ ‌strength,‌ ‌the‌ ‌Burial‌ ‌Agency‌ ‌has‌ ‌the‌ ‌authority‌ ‌to‌ ‌summarily‌ ‌purge‌ ‌someone‌ ‌judged‌ ‌to‌ ‌be‌ ‌a‌ ‌heretic,‌ ‌even‌ ‌if‌ ‌they‌ ‌carry‌ ‌a‌ ‌rank‌ ‌as‌ ‌high‌ ‌as‌ ‌archbishop.‌ ‌
    The‌ ‌quality‌ ‌that‌ ‌the‌ ‌Burial‌ ‌Agency‌ ‌seeks‌ ‌in‌ ‌its‌ ‌members‌ ‌is‌ ‌the‌ ‌ability‌ ‌to‌ ‌kill‌ ‌heretics‌ ‌with‌ ‌certainty;‌ ‌faith‌ ‌and‌ ‌personality‌ ‌are‌ ‌secondary‌ ‌and‌ ‌tertiary‌ ‌considerations.‌ ‌Unsurprisingly,‌ ‌its‌ ‌agents‌ ‌are‌ ‌full‌ ‌of‌ ‌character‌ ‌flaws.‌ ‌They‌ ‌are‌ ‌also‌ ‌powerful‌ ‌enough‌ ‌to‌ ‌match‌ ‌Servants‌ ‌in‌ ‌battle,‌ ‌despite‌ ‌having‌ ‌merely‌ ‌human‌ ‌bodies.‌
    The‌ ‌Burial‌ ‌Agency’s‌ ‌greatest‌ ‌foes‌ ‌are‌ ‌vampires,‌ ‌particularly‌ ‌the‌ ‌most‌ ‌ancient‌ ‌and‌ ‌powerful‌ ‌Twenty-Seven‌ ‌Dead‌ ‌Apostle‌ ‌Ancestors.‌ ‌Oddly‌ ‌enough,‌ ‌the‌ ‌agency’s‌ ‌policy‌ ‌to‌ ‌seek‌ ‌strength‌ ‌above‌ ‌all‌ ‌has‌ ‌led‌ ‌it‌ ‌to‌ ‌employ‌ ‌one‌ ‌of‌ ‌the‌ ‌Twenty-Seven‌ ‌Ancestors‌ ‌in‌ ‌its‌ ‌ranks.‌

  2. 2.0 2.1 2.2
    [v] Tsukihime Dokuhon PlusPeriod - TSUKIHIME Dictionary: Holy Church [Organisation name], p.183

    The Holy Church [Organisation name]
    The hidden side of the prominent religion whose name means "universal". In Tsukihime, it is referred to merely as "The Church".
    Those who teach the word of God do not acknowledge things which run counter to their doctrine. Though the public face of the Church simply treats these heresies as if they do not exist at all, there were zealots within the organization who felt they should be dealt with more proactively. This enormous division that specializes in the hunting of heresy is known as the Holy Church.
    They lead the devil exterminators called Executors, and exist for just two reasons: to completely expunge all heresy, and to properly manage those mysteries that are beyond human control. Naturally, they are on bad terms with the Association, which seeks to conceal sorcery, and the two have crossed swords time and time again. (At present the two have reached a tenuous agreement, and overt hostilities have, at least for now, come to an end.) However, their real enemies are the monsters known as "bloodsuckers". For the sake of combatting this greater threat, they have even been known to cooperate with the Association on occasion.
    Also, there are various jurisdictions within the Church as well. The Burial Agency, which Ciel belongs to, are like the elite commandos of heresy hunting.
    Arcueid, Roa, and Ciel all have deep ties to the Church, but since Tsukihime is set in the Far East outside of the Church's influence, it serves as little more than a backdrop to the story's events.


  3. 3.0 3.1 Fate/strange Fake Volume 2 - Chapter 4: Day 1, Before Dawn "A Battle Without Heroic Spirits"
  4. 5.0 5.1 Lord El-Melloi II Case Files Volume 4: case. Mystic Eyes collection train (Upper) - Chapter 2 Part 2
  5. Lord El-Melloi II Case Files Volume 5: case. Mystic Eyes collection train (Lower) - Chapter 1 Part 1
  6. 7.0 7.1 7.2 Lord El-Melloi II Case Files Volume 7: case. Atlas Contract (Lower) - Chapter 3 Part 3
  7. 8.0 8.1 Fate/hollow ataraxia - Heaven's Feel - / Forest
  8. 9.0 9.1 9.2 Fate/stay night - Fate - Day 3: long day, long night - Alter ego
  9. [v] Character material - Prelude II: The Holy Church [Organization], p.036

    The Holy Church [Organization]
    The organization that ran contrary to the "universal tolerance" of the religion.
    Preaching the word of God, they absolutely did not tolerate anything against the doctrine. Although on the surface they denied the existence of "heretics", within the ranks there existed some who rejected heretics with unmatched fervor. They turned "heretic hunting" into a profession, and a immense department was established for this purpose.
    "Executors" were individuals with the power to vanquish Demons. They physically eliminated things that did not exist in the Lord's teachings. On the other hand, Exorcists were individuals in the clergy who tolerated the existence of Demons, but merely temporarily repelled them.

    聖堂教会 [組織名]

  10. 11.0 11.1 TYPE-MOON Long Interview - Kanwa Tsukihime - The Burial Agency and Vampires
  11. [v] Fate/side material - Encyclopedia: Baptismal Chant [Magecraft], p.065

    Baptismal Chant [Magecraft]
    The only miracle allowed to be practiced by the Holy Church.
    It was a simple ritual that sublimed lost souls through the Lord's teaching, and returned them to the appropriate "Throne".
    The Foundations of each mage school's arcane principles were carved onto the World. Spells were activated by taking control of the Rules and System (through the Foundation).
    Spells with a feeble belief system and small Foundation were often weak, and could not function in foreign lands.
    Amongst faith-based spells, the one with the broadest Foundation was the Church's teaching of God, i.e. Words of God.
    Its ability to interfere with physical objects was weak, but its ability to interfere with spiritual entities was great.
    The teachings of the Church were widespread, because this miracle that "speaks to the soul" had mended the hearts of many.

    物理的な干渉力は微弱だが、霊体に対する干渉力は 絶大なものがある。

  12. [v] Fate/complete material III: World Material - Theory of Magic - Magecraft: Land and Thaumaturgy, p.043

    Land and Thaumaturgy
    To use magic, what is necessary is a sequence in which a magus, once establishing contact with a magic foundation engraved in the world, sends a command to the magic foundation and executes a premade function. At this time, the fuel used for executing the function is magic energy, and the magus will have to send the command at the same time as the magic energy.

    Magic foundations are magic theories that magus schools have engraved in the world, and magic is started up in accordance with those rules and systems. For example, the magic theory with the largest foundation is the “Teaching of the Lord” of the Church. Magic foundations engraved in the form of academia and religions fuse intimately with the veins of the land, and the magus using that magic foundation can perform magic anywhere in the world. However, if the magus leaves the land where his magic foundation was engraved in, he loses the backup of his land, and the force is certain to deteriorate.

    Note that the case is different with magic foundations that are not academia or religions but rather are passed down through personal orally transmitted teachings, the limited inheritance in clans, etc. As long as the rules of those foundations are met, it is possible to exhibit the same basic effect no matter where one is in the world.

    Matou Zouken
    The Makiri line moved from their homeland to Fuyuki and fell. For a magus to leave their land carries the meaning of departing from their own magic foundation and is extremely risky.

  13. [v] Lord El-Melloi II Case Files material - Encyclopedia: Magical Foundation [Magecraft/Other], p.109

    Magical Foundation [Magecraft/Other]
    A magical theory engraved into the world. Its strength is greatly influenced by the faith and the collective unconscious of the people.
    As a Mystery propagates, it loses power. However, the reason they become more stable as knowledge about them spreads, though it may seem contradictory at first glance, is because of this system of Magical Foundations.
    In the present day, the most widespread and most powerful Magical Foundation is the “Teachings of God,” used by the Holy Church.
    Of course, there also exist families who develop magical formulas entirely independent of such Foundations, and weirdos like Flat who “build an entirely new formula from scratch every time.”


  14. Fate/stay night - Heaven's Feel - Day 15: limited. - Duo
  15. Tsukihime -A piece of blue glass moon- - Rainbow in the Night route - Day 10: "Bow of the Skies II"
  16. Tsukihime -A piece of blue glass moon- - Rainbow in the Night route - Normal End - Day 15: "Rainbow at Night"
  17. Melty Blood Actress Again Current Code - Riesbyfe Stridberg's scenario (Real) - Stage 4: Ciel
  18. Fate/Apocrypha Volume 1: Apocrypha: Great Holy Grail War - Chapter 3
  19. Lord El-Melloi II Case Files Volume 1: case. Adra Castle Separation - Chapter 2 Part 3
  20. 21.0 21.1 21.2 Fate/hollow ataraxia - 10/08 - Streets - Caren II
  21. Tsukihime -A piece of blue glass moon- - Rainbow in the Night route - Day 8: "Reverse Hatching II"
  22. Fate/stay night - Fate route - Day 3: long day, long night - Alter ego
  23. Fate/Zero Volume 1: The Untold Story of the Fourth Holy Grail War - Prologue II: 3 years ago
  24. Fate/hollow ataraxia - Heaven's Feel - 5/ Void
  25. [v] Tsukihime Dokuhon PlusPeriod - TSUKIHIME Dictionary: Executors [Term], p.184

    Executors [Term]
    Inquisitors of the Holy Church. Those who eliminate heresies that do not exist in the Church's doctrine.
    What makes them different from exorcists is that they do not exorcize demons, but eliminate them. If exorcists are those who drive out devils from the possessed, then executors are those who exterminate devils on the spot.
    Not banishing, but defeating; not rescuing, but erasing.
    They are more like professional killers than priests.
    However, according to the Church, humans do not have the authority to defeat demons, because even demons are the creations of God. The name "executor" comes from the fact that the executors transcend that teaching, and act as God's proxy on earth to stamp out heresy. They are an army of believers, devised of by the 120 Cardinals supporting the Pope. It wouldn't be a mistake to call them the Church's greatest treasure.


  26. [v] Melty Blood Act Cadenza PS2 Manual - Dictionary: Executors [Term], p.052

    Executors [Term]
    Inquisitors of the Holy Church. Those who eliminate heresies that do not exist in the Church's doctrine.
    If exorcists are those who drive out devils from the possessed, then executors are those who exterminate devils on the spot. "Not to banish, but defeat. Not to rescue, but erase." That is the ideology that drives the executors.
    However, according to the Church, humans do not have the authority to defeat demons, because even demons are the creations of God. The name "executor" comes from the fact that the executors transcend that teaching, and act as God's proxy on earth to stamp out heresy.


  27. Fate/Zero Volume 1: The Untold Story of the Fourth Holy Grail War - Act 1 Part 2 -282:14:28
  28. Fate/stay night - Heaven's Feel - Day 15: limited. - over load
  29. Tsukihime -A piece of blue glass moon- - Rainbow in the Night route - Day 5: "Infernal River of Blood II"
  30. Interview with 4Gamer
  31. Fate/hollow ataraxia - 10/08 - Streets - Caren I
  32. [v] Lord El-Melloi II Case Files material - Encyclopedia: Ash Lock [Other], p.100

    Ash Lock [Other]
    Standard equipment used by the Executors of the Holy Church.
    Unlike the Black Keys that Executors are also known for, which take a considerable amount of training to use effectively, the Ash Lock is a powerful Conceptual Weapon that can demonstrate great ability with a minimum of training. Normally they are disguised as gloves or boots, but by removing their tag, they revert to their original form.
    Used by a large number of Executors, they come in a variety of forms. While Ilumia elected for a hand-to-hand fighting type, versions using things like small blades or crossbows also exist.


  33. [v] Tsukihime Dokuhon PlusPeriod - TSUKIHIME Dictionary: Purification [Term], p.182-183

    Purification [Term]
    In Tsukihime, the Church’s method of dealing with the undead.
    Dead Apostles… beings which were once human, but became bloodsucking monsters. In order to return them to dust, a religious symbol that they were familiar with in life is required.
    The process works by driving the natural law from when they were a human into the vampire’s body, re-baptizing their former flesh, and returning them to dust. The conceptual armaments required to perform the ceremony of forcibly opening the composition of the flesh and locking it into its original state are called “Keys of Providence”.
    To put it simply, a crucifix would be a typical example.
    However, a crucifix will only be effective on vampires that were originally Christians. If the official religion when they were human wasn’t Catholicism, it becomes much more difficult for the crucifix to generate an effect.
    On the other hand, if the vampire used to be a Christian, then even if the human under attack is not a believer the crucifix will have an effect on its own.
    Of course, it goes without saying that the effect will be greatest if they are both believers.


  34. [v] Fate/Zero Anime Visual Guide I: The Fourth Holy Grail War Glossary: Relic of the Son of God [Magecraft Term]

    Relic of the Son of God [Magecraft Term]
    Holy artifacts recognized by the Holy Church. Management of such artifacts typically falls under the jurisdiction of the Church, however the Fuyuki Grail does not fall into this category.


  35. [v] Fate/KOHA-ACE - Encyclopedia: Right Hand of Glory [Holy Relic], p.160

    Right Hand of Glory [Holy Relic]
    Hands of Glory. For our generation, we think of Yokoshima's certain-kill skill. But it's a relatively popular magecraft tool. Its effect of making people go to sleep is at the level of a handy effect. However, the hurdle for creating this tool is high. By the way, in the story the Right Hand of Glory that Caren purses is a special person's right arm. It has no relation to the guy in lace.