A story about a Master besides Ritsuka who's in Chaldea and interacts with the people of Chaldea. Just another Fate/Grand Order OC story. Rated M for the creative freedom and heavy topics of child experimentation.

In a world where the Holy Grail Wars are held once in every century, Artoria Pendragon leads the Masters of Blue, the Knights of the Round Table, against Morgan le Fay's Red Faction in the Sixth Holy Grail War - a war for Britain's future. But this conflict holds more in store for Artoria than a simple conflict of Servants and Masters; hers will be a conflict with fate itself.

At the end of the war, thanks to some luck, Saber had been reincarnated and hence allowed to stay in the modern age with Shirou. However, one night, Shirou goes to sleep and wakes up in an interrogation room. To this day, he isn't quite sure how to explain the events of that night.

Emiya despertó y la vio, entrando en aquella habitación temblando. Una niña de pelo rosa que no conocía del mundo, él solo había estado de paso sin interés en nadie o nada hasta que llegase la hora de volver a su lugar usual. ¿Entonces por qué no paraba de encontrarse con aquella mujer de pelo rosa y sonrisa brillante? Brillaba demasiado y gradualmente, se convirtió en su luz.

What would you do If you were suddenly transported to the Nasuverse just before the Fourth Holy Grail War as a young Shirou with no access to a Magic Crest, Magecraft, or OP Servant? [Self-Insert Shirou]

No soy un héroe, nací de las maldiciones y el fuego, encontrando la luz en una persona que da sentido a mi vida. no importa que me convierta en el mal de la humanidad, ganare a toda costa.

In this office AU, Emiya recieves a Valentine's Day gift, while trying to get office reports.

A Slice of life where Shirou lives happily with Kiritsugu, Irisviel and Illya. A reincarnated Arturia is the school Kendo club captain and he's the Archery club captain

Over and over and over again. How many times has he done this? Shirou couldn't tell anymore. But still, he had chosen this path. Then he will walk with it until the end. Or so he thought. Now, under the night sky, Shirou prayed that this time he closed his eyes, he wouldn't wake up again.

If EMIYA's future self told him Alaya ordered him to take a vacation with his fellow Counter Guardian—Okita Souji Alter, he wouldn't believe him and probably fire a Caladbolg II for that poor joke. Jokes on him, he'll be living in a house with Okita too!

A man, reincarnated as Shinji Matou in the world of Type-Moon, decided to shoot a Fate Movie, using his magecraft as a mean to produce top notch SFX effect, and the Heroic Spirit of the past as the actors

The Chaldea Security Organization is an organization made to protect humanity. They do this by entering Earth's past to correct any Singularities that threaten its safety. This begs the question of how a team newbie gets a role as the Last Masters of Humanity?

The Holy Grail War is over. The grail is gone, the servants returned to the throne. Yet, the city of Fuyuki suffers to this day with the scars of the devastating battle. It's like an old wound that opens sometimes, spilling a dark mud. And both the Mage's Association and the Church call on Shion Emiya, the mud cleaner. Who has to eat the sins of the past. Literally.

Une nouvelle guerre du Saint-Graal allait éclater, la cinquième se trouve à Fuyuki. Sauf qu'elle se déroule dans un univers alternatif où Emiya Shirô a été préparé pour remporter le Graal. Dans cette guerre, un 8ème Servant inconnu y fait son apparition, convoitant également le Saint-Graal, peu importe le prix à payer. Shirô x Saber.

Many things can affect the development of a growing mind be it the loss of something vital, the birth of a new ideal to strive for, or the will to face any obstacle head on as it is in your family's nature. Shinji's case was a lot more complicated than that; let it be known that the sins of the fathers must be absolved, especially if you've bear witness to every single sin yourself

Chaldea, the bastion of humanity's survival. After more than their fair share of world ending singularities. Peace times have finally come, only... not everyone is so keen on the boredom that follows. Three resident heroic gentlemen take it upon themselves to spice things up. How, with a react series starring all your favorite servants. So come on and enjoy... Chaldea Reacts!

He truly had problems understanding how fast things were going. Waking up one day in a strange place was the least of his problems when people started calling him a god, a golden king began giving him orders, and a green haired clay playing around with him, all he wanted was a break. (short chapters but long story. Please give it a try.)

A tale of three young teens and the perilous journeys they will face. From dragons, to gods, to demons, three young teens will face stand against the odds. And how their lives will be changed forever. This was a story made by both Owenchaser and CosmicVlad, but is now co-written by Owenchaser and Yatsu in memory of the late CosmicVlad.

Emiya Shirou a boy who dreamed to be a hero of Justice an impossible dream that broke many of his alternate version, but maybe in this world he can walk slightly further than the rest for he is the one carrying the will of Muramasa. (Might drop without any warning so better not reas it)

Ritsuka Fujimaru was just a normal person some months ago and now he's fighting to save humanity by traveling through history. Not only that but he also encounters two kids who want to know the . An alternative version of FGO Observer on Timeless Temple.

Kiritsugu saved a young boy in the fire of Fuyuki after the 4th Grail war. Shirou's future is set by this act, from the action to a smile. He would be a hero, even if it doomed him. But what would happen if Kiritsugu bonded to an alien Symbiote right as he adopts him? What happens when the magus killer passes on more than his dream to his son?

(NSFW) Morgan era una mujer enamorada. Pese a su fría apariencia y comportamiento inexpresivo, su corazón de doncella latía con amor y alegría ante la idea de hacer feliz a Ritsuka. Es por eso que siempre pensaba en nuevas maneras en las cuales complacer a su amado Esposo, ¿y qué mejor que Arturia y Mordred para ayudarla en darle una Navidad Perfecta?

Counter Guardians, the eternal cleaners of humanity's mess. Once a person has joined their ranks, there is no escape. Or is there? Due to certain events, CG EMIYA was relinquished of his duties, now he lives peacefully in a small town along with his adopted daughter. This is a story of a once broken man's somewhat peaceful life... emphasis on somewhat. (Connected one-shots.)

In another time and place, a lone hero with his partner carried the burden of saving the world. In this one particular time, a trio of survivors came to the right place at the right time in what could be considered fate. A fateful meeting between a traumatized man, the heir of her clan, a former king, and an innocent young woman born in isolation will decide the fate of the world.

[Being Rewritten. Check out my profile.] The story follows the extraordinary journey of Emiya Shirou, a survivor of the Fuyuki Fire, now reborn with powers beyond comprehension. Possibly having crossovers with other TYPE-MOON works. Slightly!OC Shirou.