Saber (セイバー, Seibā?) is a Saber-class Servant appearing in the Grand Orders of Fate/Grand Order. He is also later summoned as Alter Ego (アルターエゴ, Arutā Ego?), working as one of the apostles of the Alien God in the Lostbelts. They are working in tangent with the seven Crypters attempting to supplant the Greater History of Man with the Lostbelts.



Saber's True Name is Senji Muramasa (千子村正せんじむらまさ?), a Pseudo-Servant in the body of Shirou Emiya.

Muramasa is a famed blacksmith within Ise Province. Legend says that he has forged a demon sword that antagonizes the Tokugawa clan. There were stories about his Katana that killed Tokugawa Ieyasu's grandfather, there's also one that Nobuyasu used to commit suicide, and there’s also one that actually cut Ieyasu himself.[1]

Muramasa claims that he is not qualified to be a Heroic Spirit because as a blacksmith, he lacks the heroic deeds necessary to make him a hero.[1] It is for that reason he is manifested as a Pseudo-Servant in a suitable human body. It is unknown if he is a Heroic Spirit Candidate, Wraith, Phantom, or some other subset of spirit.

Muramasa theorized that he was summoned in Shirou's body because Shirou has a similar body and mind to that of Muramasa's. Furthermore, he believes Shirou had shared his way of life and experienced a similar end. Muramasa speculates that Shirou could be his descendant,[1] a theory that Parvati also believes to be true.[2]


Because he is summoned in Shirou's body he bears the same appearance as Limited/Zero Over Shirou.


His personality is that of Muramasa, he speaks like an old man.

The ultimate sword he is aiming for is something that can purge the hate. A katana that cleaves through fate, destiny and karma. That can purge one's cause itself.[3]


Fate/Grand OrderEdit

Shimosa Province: The Stage of Rivers of Blood and Mountains of CorpsesEdit

He was summoned by the Counter Force; a month or two in Shimosa before the arrival of Ritsuka Fujimaru and Miyamoto Musashi. He witnessed black ghosts attacking a paddy field during the day. Half of the farmers working on the field were killed, along with Onui and Tasuke's parents. Taking the children into his custody, he was given a hut from the west village. The hut used to belong to an old blacksmith, thus Muramasa was able to set up a workshop.[1]

When Onui and Tasuke brought both Ritsuka and Musashi to her grandpa's house. The grandpa is Muramasa, who is called the Fearless Youth (精悍な青年, Seikan'na seinen?), Ritsuka feels somewhat familiar to him, while Musashi was surprised to see him to be a little young and awes at his katana pieces. At first he is wary of the stranger until he learns both Onui & Tasuke was in the care of Musashi and Ritsuka. When Lancer Purgatrio arrives and attacks the group, Muramasa counters Lancer Purgatrio's attack and blows his upper body apart with his fake sword. However, Lancer Purgatrio regenerates, surprising Muramasa to see his attack is ineffective against the undead. When Ritsuka provides backup support for Musashi, Musashi borrows Muramasa's finest katana; though he warns Musashi of the danger of the sword. After Musashi wins her duel against Lancer Purgatrio, the group rest in Muramasa's hut. The next morning, Muramasa gifts the Katana to Musashi, calling it "Myoujingiri Muramasa" when asked by Musashi for its name. Muramasa then reveals himself to be Senji Muramasa and a Servant.[3] After having a meal with Ritsuka and Musahi, Muramasa takes them both to his workshop, where they discuss Muramasa's nature as a servant and the current paranormal activity.[1]


Muramasa forges Tsumugari Muramasa

He forges and uses Tsumugari Muramasa to destroy Amakusa's Onri Edo Castle.[4]

Ancient Titans' Ocean Atlantis: The Day God Is Shot DownEdit

He was sent as part of the Olympus Defense Force to deal with the Servants of Panhuman History. They take refuge in the Temple of Astraea, and in gratitude to the goddess' hospitality, he sculpts several statues in her honor.[5]

Astraea, recognizing him as a servant of Panhuman History, asks him why he is against them now, to which he replies that being a servant may be convenient, but he cannot choose his master. He was summoned as Alter Ego by the Alien God. Although he has no idea what his master is like and what it's true intentions are, he will focus on the tasks entrusted to him, even if his actions are considered unjust to others.[5]

Their talk is interrupted by Rasputin, who reports the sudden appearance of the remaining enemies. The Alter Egos can return to Olympus if they take care of the last one of them. Muramasa asks if they are going to deal with the remaining servants in the usual way, to which the Priest responds that both of them are enough for the task, so Limbo's assistance won't be necessary. Concerned about the Priest's mood, Senji asks if he is enjoying the situation. After a brief talk about their pasts, Senji ends up admitting that he is not the type of person who trusts his back to someone else, but as long his partner is protecting his back, he can swing his blades in battle without worries.[5]

At some point before leaving Atlantis, Muramasa visited the Temple of Hephaestus and cut off a part of the temple that contained a portion of the Hephaestus' data store, taking it with him to Olympus.[6]

Somewhere in Olympus, he is forging some artifact while Hephaestus observes his skills for the smithy, which he exalts them like those of a blacksmith who surpasses the duality of good and evil, creating exactly what he was asked for. Muramasa agrees that he has to forge what his client seeks, even if it is some kind of weapon to destroy the world. When Hephaestus asks him if he is not satisfied, Muramasa replies that he is only doing what he was tasked for, so he is unsure about that.[7]


As a blacksmith, he is confident about his skills as he has reached the territory of God.[1] He displayed Territory Creation skill as his whole workshop just never stops following him.[1]

Saber is mentioned as being a swordsman skilled enough to cut even causality.[8] Saber displays some battle abilities, he was able to dodge Lancer Purgatrio's spear and at the same time countered with his Blade-Testing Art, which blew Lancer's upper body half apart.[3]

Myoujingiri Muramasa

Myoujingiri Muramasa

He crafted the blade Myoujingiri Muramasa (明神切村正?, lit. cutting gods and demons Muramasa), though he claims it to be a failure because he accidentally smithed it into, the conceptual realm of Demon and it became a Cursed Sword. It's a Glass Cannon, that'd cut both the victim and the user. It can cleave through the supernatural, on a conceptual level. It can cut through armor, boulders and even steel, but it is not something that a normal human can use.[3] Musashi claims its whole structure and form made it feel much lighter than a feather when swung around and it has a whole new level of divinity within it.[1][3] The katana is still imperfect as it can't really cut off anyone from fate or destiny but it can at least sever a cause.[3]

He is able to forge the demonic sword Tsumugari Muramasa.


Saber was first mentioned in Fate/Grand Order material I in EMIYA's's profile, EMIYA saying "...Hmph. Not bad..."[9] His design was first shown on "Limited/Zero Over" craft essence.


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Fate/Grand Order Epic of Remnant - Shimosa Province: The Stage of Rivers of Blood and Mountains of Corpses - Act 04: Song 2 ~Inferno~ (Prologue)
  2. 2.0 2.1 Fate/Grand Order Material Book V - Parvati Profile.
  3. 3.0 3.1 3.2 3.3 3.4 3.5 Fate/Grand Order Epic of Remnant - Shimosa Province: The Stage of Rivers of Blood and Mountains of Corpses - Act 03: Song 1 ~Purgatrio~ (Final)
  4. Fate/Grand Order Epic of Remnant - Shimosa Province: The Stage of Rivers of Blood and Mountains of Corpses - Act 15, translated by You at Beast's Lair.
  5. 5.0 5.1 5.2 Fate/Grand Order: Cosmos in the Lostbelt - Ancient Titans' Ocean Atlantis: The Day God Is Shot Down, Chapter 13
  6. Fate/Grand Order: Cosmos in the Lostbelt - Ancient Titans' Ocean Atlantis: The Day God Is Shot Down, Chapter 10
  7. Fate/Grand Order: Cosmos in the Lostbelt - Ancient Titans' Ocean Atlantis: The Day God Is Shot Down, Chapter 26
  8. Fate/Grand Order material I - Emiya, p.105
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