At the end of the 5th Holy Grail War, Shirou fails to completely destroy the corrupted grail. He soon wakes in a new world where everything he knew had been changed. Shirou eventually stumbles into an organization known as Chaldea and the rest is history.

Kukulkan contempló lo que tenía en frente. La vida que quiso estaba presente, más su deseo caía en la locura fervientemente. ¿Quién era esa persona que tanto anhelaban? Mirando a su lado solo pudo sonreír y llorar al no querer llegar a la realidad actual. Y a su deseo demencial.

Hakuno after fighting tooth and nail through the holy grail war finally reached the Mooncell and made his wish. However, not all wishes are granted equally... Nero, now within this new world, is the first to realize this. Something had clearly went wrong, and it was up to them to find out how to fix it before everything falls apart.

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.)

The Fourth Holy Grail War goes much differently, and yet ends in the same disaster. It's surviors crippled, scarred or dead with Shirou Emiya being forged in the fire of just the mere shadow of all the worlds evils. And yet something is not quite right. Flowers bloom in the mud, and as Shirou grows, he'll find that the sins of the past run much further back then he can imagine.

Un hombre hecho de espadas, un hombre forjado en el fuego y lágrimas ajenas. Emiya Shirou luchara en la Guerra por el Santo Grial como siempre ha estado destinado, pero el encuentro con un viejo amigo y una mujer desconocida, cambiara el camino que recorrerá ¿Podrá mantener sus ideales o los traicionará?

La vida de dos hermanos es interrumpida cuando algo les ocurre a sus juegos del Grand Order. Zelretch se presenta ante ellos con una oportunidad única en la vida: Volverse masters de Chaldea. Ahora deberán recorrer las singularidades para rescatar a los servants que han sido corrompidos por una extraña razón y seguir la historia ¿podrán hacerlo?

Un nuevo Master ha llegado a Chaldea, sin embargo este es diferente al resto... es alguien quien ha vivido miles de cosas a lo largo del tiempo, y ahora demostrará de lo que es capaz, para así salvar a la humanidad. Una a la cual había abandonado hace mucho... pero ahora usará todo su poder y no estará solo para lograrlo.

La línea de tiempo ha divergido con el paso del tiempo, la humanidad ha perdido paulatinamente la esperanza, aquel Ritual se llevó a cabo antes de lo previsto, los Primigenios han comenzado su periplo hacia la Tierra para destruir a la humanidad, finalmente, la Estrella de la Cosecha está cada vez más cerca de retornar. Y así, un mundo ha sido roto después de múltiples desastres...

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.)

As the hit new boardgame FGO Duel spreads throughout the populace, Ritsuka, Shirou, and Hakuno find themselves joining in with the craze. As Ritsuka comes across a figure that should never have existed, though, the dark truth behind FGO Duel's existence will draw all three into a game far more deadly than they expected. Heed the cry: "Duel, Go!"

Come One, Come All! Come see Fate Inspired Servants from characters from all across Time and Space! All not constrained by the premise of Earth! Heroes and Villains all across the stretches of time, now all is seen etched on the throne of heroes. Can you find a servant you most desire?

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 the end times, the World did not survive an eldritch onslaught. It and the Counter Force united to save the last Hero of Humanity, transporting him across time and space with the required reserves for his adventure. Another adventure to save the world, a parallel reality where the Age of the Gods still thrived. A world where Humanity is in consistent danger of the supernatural.

Ishtar wants to gift her Master for his hard work during the holiday season. One-shot. cute fluff (Gudao/Ishtar)

When Zelretch notices that the Master of Chaldea is in danger, he sends his best agents to help. Hang on Chaldea, Rin and Shirou are on their way! Cross-posted on Ao3.

En una tendencia donde reencarnas en cualquier cosa, no debería sorprender hacerlo en un personaje que ni siquiera existe. Self-insert en uno de los candidatos.(No se toma enserio)

"Echos of Eternity : Uncovering the past"

Esta, es la historia sobre un tipo que escribió una novela sobre el mismo siendo un personaje principal ridículamente poderoso (self insert) por aburrimiento y lo grabó en la historia humana, sólo para ser invocado a la Cuarta Guerra del Santo Grial con seres más allá de su comprensión. El karma es una perra. La historia fue adoptada de X-kalibuur escritor ingles en fanfiction.

Fue solo curiosidad que se extendió a cada año. Una figura que todos conocían, pero de la que nadie deseaba hablar. Un conocido, un extraño, un amigo o un desconocido. Nada importaba ahora, solo deseaba poder comprender que había debajo de esa red que no parecía pensante. Ella no buscó una luz guía. Ella buscaba ser esa luz.

About a decade after the dismantlement of the Heaven's Feel system, it has been rebuilt by a singular genius. The Holy Grail War begins again, against the wishes of those who live in this town.

It has been thirty years since the last Holy Grail War, which ended with the Grail's destruction. But now, a new Grail has finally been created and the Mages Association is prepared to test it out. Their new site for the war? Tokyo. And now, new Masters and Servants step out onto this stage for the first time, with some familiar names. Including, Tohsaka Rin's daughter. SYOC!

As a the last Master of Chaldea, Ritsuka Fujimaru is constantly tired and frustrated. So to help her, Merlin turns her into a Futanari! With a new craving for sex and pleasure, Ritsuka starts to sleep with her servants one by one. Even her sweet kohai, Mash, is not safe from her senpai's newfound lust! How will Chaldea fair as it's only Master becomes a sexual deviant!

He looked upon the warm sun, and so was reminded of a promise.

A young Emiya Shirou finds the limp body of Caster on the temple doorsteps one fateful night and the future is forever changed. The Witch of Betrayal always had a soft spot for cute things. Shirou/Multi. Warning: Very explicit