Ruler (ルーラー, Rūrā?) is a Ruler-class Servant able to be summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order. Prior to forming the contract with Ritsuka, he was a Caster-class Servant without a Master.



Ruler's True Name is Sherlock Holmes (シャーロック・ホームズ, Shārokku Hōmuzu?), the world's greatest, most famous and sole consulting detective, the genuine father of all detectives. The crystallization of the concept of detectives, the representative of "the Revealers". The protagonist of the stories written by Sir Arthur Conan Doyle in the 19th~20th centuries, and the detective that solved every mystery, and in the many mystery novels written after, he is one of the progenitors of "Detectives". Or so it is said. But is that really the truth?[1]

Sir Arthur Conan Doyle's novels were the memoirs of his companion and assistant, Dr. John Watson.[3] Holmes works as a consulting detective in London and is famously based in a flat at 221B Baker Street. He has handled many requests, and has definitely gotten a fair share of serious cases from the London Metropolitan Police Department (Scotland Yard), some of which even involved the English government. He has a doctorates in medicine, economics and law and is a member of the Royal Society, and he is especially well-versed in pharmacy.[4]

Holmes and Watson were investigating the death of Henry Jekyll. Holmes received a letter prior from his death, the letter explaining about his failed experiment and his Hyde persona. Holmes was convinced that the Clock Tower was involved with "The Incident of Jack the Ripper".[4]

The Heroic Spirit Holmes, who resembles the men he was modeled after, such as Joseph Bell, Doyle himself, or the oldest detective in the world, Vidocq - he was summoned into this world as none of the above, but rather, as the protagonist of a series of novels (for his words and actions cannot be thought of those other than that of a protagonist's). In the end, was the story of Sherlock Holmes really a complete work of fiction penned by Sir Doyle, or was it the biography of the actual Holmes as written by Dr. John H. Watson? Perhaps it was somewhere in between the two? At the very least, Holmes himself should know the answer, but it's not a topic he brings up himself, and when the issue does come up in conversation, he always deftly evades the question.[1] His greatest Nemesis was James Moriarty.


According to Bedivere, Sherlock gives off the same odor as Merlin.[3] Character art also depicts him wearing a cape and smoking from a pipe, both of which are recurring elements from the original stories and in many later adaptations in film and television.

Assuming that he is born from stories, then the stories might not only be Doyle's novels, but also the pastiche works as well... or so the Chaldea employees discussed.[1]


« My name is Sherlock Holmes. It is my business to know what other people don't know. »

(Holmes in "The Adventure of the Blue Carbuncle")

« How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth? »

(Holmes in "The Sign of the Four")

Holmes is famous for his deductive mind and believes in taking cases for the sake of justice and as an intellectual pursuit rather than for fame, fortune or glory.

Contemplative, but at the same time, active. Bold, but at the same time, precise. And also a calm and composed man. Any kind of mystery, crime, and scheme cannot run from Holmes' eyes. Even if it is a fearsome killer, an ancient curse, a monster of the dark night, and even if it is an ultra nationalistic secret association, he will reveal everything. If necessary, he would defeat it. With the sharp blade called the truth. That way of life has already surpassed the boundary of men. It could even be called the personification of "A Wise Man" or a "Revealer".[1]


Fate/Grand OrderEdit

London: The Death World in the City of Demonic FogEdit

Although he doesn't appear in London, he left some intelligence at the Mage's Association. He organized the documents, and arranged it in a manner that was easy to understand for the Chaldea group. However, if Sherlock had made it too easy, Makiri Zouken would have found out. Andersen mentioned that someone had already organized everything before he started his research. Sir Babbage has tasked Sherlock to uncover a mystery.[3]

Camelot: The Sacred Round Table RealmEdit

When the Chaldea group, Ritsuka Fujimaru, Mash Kyrielight, Bedivere, Xuanzang Sanzang and Tawara Touta, is fighting Lancelot and his forces while searching for the Atlas Academy, they fall straight through the ground into the Academy, thanks to Holmes.[3]

Holmes reveals his role in the "London" Singularity, explaining that he would obviously appear on the scene of a murder mystery on the level of "The Exhaustive Slaughter of Humanity by the Incineration of the Human Order". He tells them about the Atlas Academy, which has been displaced in time, and inquires about their encounter with the King of Magic, Solomon, in order to gain more information about the man behind the Singularities. Holmes explains that Solomon is indifferent to Chaldea due to having already completed the Incineration of the Human Order from his perspective and being busy with his nex plan.[3]

The group reaches the core of Atlas and TRI-HERMES, the greatest media storage system within Atlas. They use Trihermes to research about a certain incident. The Holy Grail War of 2004, that Marisbilly Animusphere, the founder of Chaldea, participated in and won. The records also tell that Romani Archaman was brought with Marisbilly into he war and a year later into Chaldea. Holmes and the group become increasingly suspicious of Romani, as there is no other information about him before that point. They also find out that the Lion King intends to use her Holy Lance, Rhongomyniad, to transport the people of the Holy City into the Tower of the End as human records, while the rest of the world will be destroyed. Holmes also reveals that the Heroic Spirit inside Mash is, in fact, Galahad.[3]

Holmes escorts the group out of Atlas, though he stays behind, as he refuses to join Chaldea just yet before finishing a case that he had been given by Babbage.[3]

Shinjuku Phantom Spirit Incident: The Malignant Quarantined Demonic RealmEdit

Agartha: The Mythical Subterranean SocietyEdit

Sherlock Holmes Trial QuestEdit

Sherlock requests Ritsuka to accompany him into the battle simulator to try the item Babbage made him. They enter the simulator, but the environment isn't a recreation of one Ritsuka rayshifted. Instead it is cyberspace thanks to Babbage's program transporting Ritsuka and Sherlock into Chaldea's computer system. Sherlock explains the simulator normally used to train contained an unsual mass of data within the mainframe's internal memory. He lent his aid to the staff to remove the data, but he was forced to ask Babbage for help. While he prefers solving mysteries on his own, Sherlock invited Ritsuka and Mash to give some commentary on it. He warns battle is possible, and he is unsure if his new Spirit Origin will be sufficient. He also warns Ritsuka that any injure they sustain in cyberspace will affect their physical body when Mash detects enemies with a magical energy response. After the battle, he reveals he became a Servant of Ritsuka as of last night, changing his Spirit Origin of a Caster into that of a Ruler. Ritsuka and Mash then ask him if he's a historical figure or fictional character. He asks them in turn that if he is indeed a fictional character, would that make him similiar to those from legend that currently serve as Servants. While he was created by Sir Arthur Conan Doyle during his lifetime, many heroes of legend had their stories written long after their deaths. Despite that small difference, Sherlock and the others are still essential the same. However, he also says there is no physical evidence of any of their existences either through historical records, cultural anthropology, or archaeology. As he begins to list the aspects of the world that were proven or said to be fictional, the mass of data he was searching for interrupts. Sherlock reveals it is the data generated by the battle simulator everytime Ritsuka wins. While normally the data would be deleted after every session, but some fragments remained in the registry. Sherlock reveals the data is the anger felt by the NPCs everytime they lose. He continues they would normally acknowledge their loss, but someone twisted that into anger. He says he will deal with the culprit after the NPCs are taken care of. After destroying the mass of data, Sherlock tells Ritsuka that the NPCs that train them in the simulator are essentially members of Chaldea that helped saved humanity. Ritsuka asks him what he actually is, but Sherlock doesn't answer as things would become even more complicated.

Later, Moriarty asks him why he glossed over the details of what speaking about to Ritsuka and Mash. Sherlock answers he had no choice, otherwise he had to go into detail about Parallel Worlds, Quantum Time-Lock, and the Age of Gods. He continues that many live in uncertainty, as the world retains no physical trace of their existences. He is fine with this though since reality like a fleeting dream to them, one that would end if Rhongomyniad, which secures the current reality, was removed. As such he was made into a Ruler to mediate the truth and rule over all creation to maintain the history of humanity. He feels as if the World is tell him that not all illusions and dreams need to be laid bare. He then ask Moriarty if he tampered with the simulator. Moriarty denies any tampering, but Sherlock deduces he used a static blocker that he noticed last May as a reference to tamper with the system. Moriarty is annoyed that he would bother asking if he knew all along, an aspect of his personality that always frustrated him. Sherlock asks him if there was such an instance in any of Sir Doyle's works, which furthers Moriarty's frustation.

Götterdämmerung: The Eternal Ice-Flame CenturyEdit

Other appearancesEdit

He was referenced in Lord El-Melloi II Case Files, Lord El-Melloi II's detective skills was described as comparable to Holmes'.


As Mash suspected, Holmes was initially summoned as a Caster-class Servant.[3] This is further shown in his Class Skill, Territory Creation, a common Skill of Casters. After contracting under Chaldea's FATE system, Holmes's class changed to Ruler.[5] He is also capable enough to take up the Saber and Archer classes.[6]


Holmes's Class Skill is Territory Creation (EX). His Personal Skills are Natural Insight (A++), Hypothetical Reasoning (A+) and Baritsu (B++).[1]

Unlike many other users of Territory Creation, rather than creating territories such as a magus workshop like normal Casters do, Holmes is continuously expanding a great library of memory inside his brain. Using that, all manner of knowledge checks gain bonuses.[7]

Natural Insight (天賦の見識, Tenpu no Kenshiki?) is the ability to perceive the true nature of things. Holmes's sharp eyes for observation will not overlook any sort of information. Although their principles are completely different, this can read into the future in a way that is similar to the future prediction of Clairvoyance.[1] In the case of being used against Servants, should the luck check succeed it will see through the truth, even one firmly concealed by means of magic or Noble Phantasms.[7]

Hypothetical Reasoning (仮説推論, Kasetsusuiron?) is a skill connected to abductive reasoning, a type of logical reasoning and an induction method applied on a wide scale. It is inference with regards to the study of logic; however, the one Holmes used together with mathematical processes of elimination has already reached the realm of special Skill. Holmes also makes use of deduction methods. For him, main Skills are nothing more than methods of reasoning.[7]

Baritsu (バリツ, Baritsu?) is an Oriental martial art that is extremely combat-oriented. Other than employing striking techniques that combine this skill with boxing, Sherlock Holmes also has counters and grappling throws as his forte. If the conditions are right, he can even employ a special move that is on par with the True Name release of a Noble Phantasm, but...[1]

Noble PhantasmsEdit

Holmes's Noble Phantasms are Elementary, My Dear and Empty House.[1][2]

Elementary, My Dear: It's Elementary, My Friend (初歩的なことだ、友よエレメンタリー・マイ・ディア, Shoho-tekina Kotoda, TomoyoErementarī Mai Dia?) is Holmes's Origin of "Elucidation" sublimated as a Noble Phantasm. Even if Holmes is faced with a truly unsolvable mystery, clues and paths towards the truth will appear in the world, though he will still have to find them.[1]

Empty House: The Adventure of the Empty House allows Holmes to disguise himself as another person, even another Heroic Spirit, though his disguised Parameters cannot exceed his own and he cannot use any Skills or Noble Phantasms that the individual possesses.[2][8][9]


Kotetsu Yamanaka is the character designer for Sherlock Holmes.


In Fate/school life, Eiichirou Mashin held a contest for which he asked his readers to submit designs for the strongest Servant. His Noble Phantasms are Absolute Reasoning (絶対推理, Zettai Suiri?) and Baritsu (バリツ, Baritsu?). (The latter was the method he used to defeat his nemesis, Professor Moriarty, as disclosed in The Adventure of the Empty House, the first Holmes story published by Conan Doyle after Holmes was thought to have died in The Final Problem.)


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26
  2. 2.0 2.1 2.2 2.3 Fate/Grand Order material V - Sherlock Holmes
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Fate/Grand Order - Camelot: Round Table Realm, Chapter 14
  4. 4.0 4.1 A Study in the Color of Ravens' Feathers (pt.1) (pt.2) (pt.3) (pt.4)
  5. Fate/Grand Order - Sherlock Holmes Trial Quest
  6. TYPE-MOON Ace Volume 11
  7. 7.0 7.1 7.2 Fate/Grand Order material V - Sherlock Holmes. Information extract from Beast's Lair (post by castor212)
  8. Fate/Grand Order: Epic of Remnant - Shinjuku Phantom Spirit Incident: The Malignant Quarantined Demonic Realm
  9. Fate/Grand Order - Sherlock Holmes, Valentine's Day

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