- 1 Profile
- 2 Role
- 2.1 Back Alley Satsuki - Chapter Heroine Sanctuary
- 2.2 Fate/Grand Order
- 2.2.1 Event: SABER WARS
- 2.2.2 Event: The Garden of Order
- 2.2.3 Final Singularity: Solomon
- 2.2.4 Musashi Trial Quest
- 2.2.5 GUDAGUDA Meiji Restoration
- 2.2.6 GUDAGUDA Strange Tales of the Imperial Holy Grail
- 2.2.7 Interlude
- 2.3 Other appearances
- 3 Abilities
- 4 Forms and Alternate Versions
- 5 Development
- 6 References
« The Artoria Species is like a cancer of the universe.
|(Mysterious Heroine X)|
Also known as Heroine X (ヒロインＸ, Hiroin X?) and just X, Mysterious Heroine X is an unknown heroine who tasked herself in eliminating Saber-class heroines during Back Alley Satsuki - Chapter Heroine Sanctuary. Bearing the code name "A-X", X was a stranger who came from the "mysterious dimension" called the Servant Universe. Seeking to accomplish her "true, dearest wish" to "defeat all Sabers", she brandished Secret-Calibur and left her home town, leaving behind an "expression full of bitterness."
Even before arriving at Chaldea, she managed to save an ancient royal dynasty from a crisis, settle the internal strife of the "Mankind Integration Union", and rout invaders from another universe, but such actions were trivial enough for her to not even remember accomplishing them. She will continue to brandish her sword until her goal is completed, and can still be seen "dashing across the sea of stars" even today. No matter what, she also plans to cut down the "Golden Great Emperor Cosmo Gilgamesh."
X has revealed to none that her true identity is actually Artoria Pendragon. While she believes that her "perfect disguise" has tricked everyone, it is asked that others keep the fact quiet to keep from spoiling it and also for the sake of X's own honor.
« It's sticking out...it's sticking out...it's really sticking out. »
|(Assassin's profile, on her ahoge)|
Assassin's appearance is said to be of a young woman with "rough and sporty garments unseemly for Servants." Her blue muffler is a symbol of courage, and her cap is used to hide her identity and ahoge, although it sticks out of the cap.
Mystery Heroine X's wish for the Holy Grail is the destruction of all other sabers. Or at least for them to change their class name to Attacker or Swordsman or something.
- Saber Class
- Mysterious Sailor X
Back Alley Satsuki - Chapter Heroine Sanctuary
Mysterious Heroine X originally debuted as a joke character in the April Fools visual novel of 2013: Back Alley Satsuki - Chapter Heroine Sanctuary, alongside Satsuki, Sion, Riesbyfe, and Ciel as one of the five “Bronze Heroines.” She and Ciel join the initial trio of Satsuki, Sion and Riesbyfe after their defeat of “Hassan-Ko,” MHX declaring defeating those of the Saber-rank was under her jurisdiction. Specific information unavailable, English translation only provided for Prologue and Chapters One and Two.
She was declared primarily a background character who did little, aside from single-handedly defeating the third Gold Heroine, Nero Claudius.
Event: SABER WARS
X crash lands into the Singularity that Ritsuka and Mash are using to help train Artoria Lily when her ship, the Du Stallion II, is sabotaged by Ultra Heroine Z. Emerging from her ship, she criticizes Artoria’s attitude as pathetic and fainthearted. She then fights her to show her what a true Saber is. Though Ritsuka’s party defeats her, X claims the fight was a warm-up and her struggling was her holding back. She introduces herself and decides to take on Artoria as her student, which Artoria accepts. X tells her she needs three kinds of materials possessing mysterious powers spread across the world in order to repair her ship. After Artoria accepts the task, X informs the group they must defend the ship from monsters and collect Artorium particles from them, which she’ll use to power up Artoria.
After the group defends the ship, X explains Artorium powers her ship and its Spirit Origin Enhancement Device, Adam Kadmon, which will be used to enhance Artoria Lily. Blackbeard then suddenly appears with a silent Gilles de Rais to take both the Du Stallion II’s parts and to take either Artoria or Mash as his wife. The group defeat Blackbeard and tie him up. Despite the protests of the others, Artoria agrees to let Blackbeard train her. Training is cut short, however, after Blackbeard is struck twice in the crotch by Caliburn thanks to Artoria’s lack of aiming.
The next day, Artoria asks X where she is from. X takes her question as her having an ulterior motive until Artoria explains she wanted to make a popular dish from X’s hometown as thanks for helping her. X reveals she came from the Servant Universe’s future to the present in order to save the future. She then instinctively attacks Nero Claudius when she, EMIYA and Tamamo-no-Mae, arrives to investigate her ship. After her group is defeated, Nero offers to be Artoria’s sparring hero. X protests and tries to fight Nero again, but EMIYA stops her. He offers to train Artoria instead, which both she and X accept.
After X quickly defeated Paracelsus, Okita Souji, Medea, Medea Lily, and Siegfried when they came for her ship, Artoria questions her actions since they could’ve reached an understanding if they talked. After they defeat Charles Babbage, Sakata Kintoki, and Nikola Tesla, Ritsuka, Mash, and Artoria asks X about her true motives since Babbage warned them about her ship. X explains that the reason the future is doomed is because of an economic crisis in her universe caused by the Saber class’s value plummeting thanks to their overabundance in the future. Now understanding X’s reasons for instinctively attacking any Sabers she sees, Artoria wonders if she should be destroyed as well. But X explains she must allow one Saber to live, otherwise she wouldn’t exist. She believes Artoria to be that one. Suddenly, she is ambushed by Z, paradox version of X to kill her after she fulfilled her mission in the past to kill all Sabers. While she is unconscious, the group defeat Z.
After she wakes up, X thanks Artoria for saving her. She then admits that she was deceiving her the whole time, but Artoria wishes to continue her training since X believed in her. Taken aback by her innocence and kindness, X postpones her mission to continue Artoria’s training. While Artoria is training, X tells Ritsuka that Artoria cannot change Britain’s fated destruction. Despite that, she feels Artoria can at least change the process. She then tells Ritsuka that she and Artoria owe a lot to Chaldea, and offers to help them.
Event: The Garden of Order
X crashes into the Ogawa Apartment following a highly concentrated Saber signal. In response, Shiki Ryougi changes into her Saber self. Terrified of her, X claims she had the wrong person, and asks to be allowed to go home. But she is forced to fight Shiki when her emergency warps fails. Shiki defeats her, but X claims it doesn't count unless she loses against a blonde Saber. She then retreats after saying they’ll meet again as friends.
Final Singularity: Solomon
Musashi Trial Quest
X traps Ritsuka and Miyamoto Musashi inside a Reality Marble with her W.F.D. Bracelet when they arrive at third gate. She ambushes Musashi with projectiles, but Musashi deflects them. Showing herself, X declares that a true Saber only holds one beloved sword in hand and that the twin sword style is the ultimate way of evil (ignoring the fact that she does precisely that when using Secret-Calibur). Musashi acknowledges X’s swordsmanship as first-rate, even though it’s from a school she’s unfamiliar with. While X struggles during their duel, Musashi finds her weak point with her Mystic Eye. Musashi then destroys X’s W.F.D. Bracelet to remove the Reality Marble. X is angry that Musashi destroyed it since Lionhead made it. Though she claims Musashi hasn’t won yet, she decides to retreat out of fear. She also tells her to watch out for when a second and third her arrive. She then disappears after saying goodbye to Ritsuka, hoping to see them again.
GUDAGUDA Meiji Restoration
X appears under the name of Mysterious Chousokabe Heroine X as one of the Servants summoned by Andras to serve Oda Nobukatsu. She defends the Sun Fortress against Ritsuka’s party while Nobukatsu sacrifices Chacha to Andras. Ritsuka’s party defeats her and Andras’ other Servants.
GUDAGUDA Strange Tales of the Imperial Holy Grail
X appears under the name of Mysterious Kasuya X as one of Chacha’s Seven Imperial Spears. She mistakes Okita Alter for a Saber, and though she is corrected, she decides to hunt Okita Alter for her face alone. She later ends up fighting Okada Izou, wondering if he’s a Saber because of his impressive swordsmanship. Izou claims he’s neither Saber nor Assassin, but a Ripper instead. X helps Ritsuka’s party defeat him, angry at an Assassin imitating a Saber. She also tells Okita Alter to meet her at the back of the Sports Warehouse afterwards, for she has something to say about her face.
Saber Slayer: Dawn
X tells Ritsuka and Mash that there is a tournament for the title of Saber of Sabers. She states she cannot stand that Sabers are gathering from all over the world to participate. She is angry she didn't get an invitation, claiming herself to be the greatest of all Sabers. She says she will not allow a tournament that will not admit her to happen. She decides go in anyway to show the others what a real Saber looks like.
Entering the tournament at the third round, X faces off against Mordred, who quickly recognizes the former as her father. X replies she doesn't know whose child Mordred is, and fights her. After defeating Mordred, X claims Britain's crisis has been averted, and states another Saber who isn't her is gone. Mash wonders if X met Mordred somewhere, but X adamantly denies Mordred being family.
Saber Slayer: Clash
X has already defeated countless Sabers in the tournament. Her opponent is Nero, and claims she would be getting more cheers if they were in Britain instead of Rome. Nero proposes a pre-battle song, but X interrupts her and claims she came to stop her tyranny. She addresses her as Red Saber, which causes Nero to recognize X's face. X declares she cannot permit red in the Saber lineup since she didn't give her permission. She then fights Nero, and offers to forgive her if she throws her a feast. But Nero refuses, so the fight continues. After she is defeated, Nero finally remembers X's true identity, but X angrily finishes her off when Nero calls her Jeanne d'Arc.
Saber Slayer: Awakening
X and the others travel to a castle in Britain to face her final opponent: Artoria Pendragon, whose very confused by her participation. X says she and Artoria are two sides of the coin, and claims she cannot become a true Saber unless she defeats her. She then prepares to fight Artoria, even though she is concerned about causing a space-time collapse. Artoria decides to fight X, declaring she cannot her out into the world for her and others' sake. As the fight continues, Artoria asks X what drives her. X answers that Artoria wouldn't understand the terror of seeing many more of her own face appearing; Romani Archaman says she understands though. The two then empower their holy swords, not wanting lose against the other, and continue their battle. Despite Artoria havng the home field advantage, X is able to defeat her. X is then congratulated by the other Sabers for winning the tournament. She is about to "reveal" to Ritsuka that she is in fact Artoria, but the sound of Mash telling her that dinner is ready wakes her up, making her realize that the entire thing was only a dream.
Assassin claims to be the "definitive edition of the Saber Class", acting as an Anti-Saber Decisive Weapon (対セイバー決戦兵器, Tai-Seibā Kessen Heiki?) that "fairly and squarely performs surprise attacks as a knight." She brandishes the "mysterious magic sword" Secret-Calibur to massacre her enemies and uses her favorite ship, the Dun Stallion II (ドゥ・スタリオンⅡ, Du Sutarion II?), to travel through space.
- Cosmo Reactor (A Rank): A reactor that’s cosmic, it’s allowed only to the shining Saber. The reactor reacts to many things. Like the plot, for example.
- Riding (EX Rank): Talent for riding. She can’t manage most mounts and vehicles, but she is amazingly effective when it comes to piloting junk spaceships. To the point that she can make a ship with no warp function warp.
- Presence Concealment (— Rank): Are you implying Sabers have that!? (It’s actually ranked EX, but it’s sealed since she completely denies it)
- Supporting Bombardment (EX Rank): Using a mysterious communication device, she can have Du Stallion II automatically perform back-up fire. In a duel between knights, there’s no such thing as dirty trucks and underhanded tictacs.
- Instinct (C+ Rank): Considerably downgraded compared to the normal Artoria, but it ranks itself up to A-Rank Instinct for anti-Saber purposes only.
- Galactic Meteor Sword (C Rank): A power given to the Saber that can destroy even stars. Also known as the sword that absolutely kills Sabers. Since it’s super-effective against Sabers, wouldn’t you agree that this makes her the greatest Saber of all?
Forms and Alternate Versions
Ultra Heroine Z
Ultra Heroine Z (ウルトラヒロインZ, Urutora Hiroin Z?) is an alternate version of Mysterious Heroine X who acts as the antagonist of the "Saber Wars" event. An alternate version of Mysterious Heroine X, created by her events in the past, causing a paradox to kill her after she fulfilled her mission to kill all Sabers and thus, become the most powerful Saber in the past. Ultra Heroine Z is mostly the same as Mysterious Heroine X, but she loathes all Sabers (including Lily and especially Nero) and deems MHX a failure as a Saber Killer for "opening herself to the enemy".
Creation and Conception
She makes her first appearance in 2013 April Fools.
Nasu Kinoko is the scenario writer for Mysterious Heroine X in Fate/Grand Order. Takashi Takeuchi is the character designer for Mysterious Heroine X. BUNBUN is the character illustrator for Assassin.