With the arrival of servants to Chaldea, the mission to fix the singularities could finally start, but the situation is more complicated than they imagined.

Kiritsugu Emiya, a cold heartless assassin and magus slayer, and later a participant in the Holy Grail War was expecting nothing more than some form of peace after that, but everything changed when he wakes up, baring the command seals on his hand, but instead of having Saber serving him, he's going to be serving her in the times of Arturian Legend.

Counter Guardian EMIYA has retired. He now lives in a peaceful town somewhere in Japan. Watch as he gets in alot of hijinks with his daughter in tow. I made this fic for fun, so please don't take this seriously. (Episodic, requests open, it's all about the fluff.)

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]

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?

A guy becomes Shirou, but wait- why is Illya younger? And why is Irisviel here? And why does he have the First Magic? And why is Illya so cute? ! (Self Insert Shirou in Kaleid x Prisma Trio)

An abnormal summoning of a certain Counter Guardian, he was sent back in time... but WAY before his desired Grail War. however, this Counter Guardian has learned to let go of his hate, and now he is in a peculiar situation... will he able to save everyone... at the cost of himself?

Given a choice by Zelretch, Shinji Matou has crossed dimensions to fight in the Great grail War as part of the Red faction, both to earn what he has always wanted, and to fix his mistakes. the bastards redemption is at hand, he merely need to reach it, and find what kit means while surviving a war unlike any other. slightly older shinji, Shinji redemption fic. rated T, M later.

Honestly, Alaya wanted to screw another pair and cause more problems for a certain Counter Guardian. Enter— one Arthur Pendragon and Merlin!

7 Legendary Heroes from across Space and Time are summoned to fight for Greatest Holy Relic in the World, the wish-granting Holy Grail. Or so it should've been. Instead, many different (canon-based) Future Possibilities of Emiya Shirou from different routes are summoned to fight for their chance at the Holy Grail. A Fated Clash, Of Unlimited Blades Working, For a Feel of Heaven.

Nero Fest 2023. Todos esperan ansiosos por quién representará a Ritsuka Fujimaru este año, y para su sorpresa, no es Cu Chulainn sino la única e inigualable bruja de Bretaña, Morgan Le Fae. La Bruja más grande que el mundo ha visto enfrentándose al héroe más grande de Grecia, todo par aprobarse a si misma ante el hombre que ama.

Nero Fest 2023. Everyone is expecting who's going to represent Ritsuka Fujimaru this year, and much to everyone's surprise, it isn't Cu Chulainn but the one and only Witch of Britain, Morgan Le Fae. The greatest witch the world had ever known, faces Greece's greatest hero all for the sake to prove herself to the man she loves.

Shirou can't help but worry whenever he thinks about a certain Dark Knight, believing there's a glimmer of that girl of her past that she hides underneath her shell. That's why, despite it all, he would try to bring her out with a promise.

Artoria was tired. Tired of the treatment she faced at the hands of the fairies of Tintagel, and as she lay in the her cell, she decides to use an odd spell taught to her by Merlin, that would get her out of her predicament. Sir Kay, having left the Lion king, was wandering through the deserts of Israel when he suddenly found himself in a dark cell, staring at a familiar person.

What happens when instead of Kiritsugu, it is Zouken who finds Shirou? What happens when rather than Avalon which is inserted into Shirou, it is the leftover shards of the lesser grail which searched for someone to wish on it? What happens still when rather than the Magus Killer unwilling to teach our young Hero(?), it is a pseudo Vampire more than willing to teach. Find out.

Even in a world without the Fuyuki Fire and the influence of Kiritsugu's ideals to corrupt him, - - - - - Shirou still becomes a hero. A realistic (迫真) take on a pure-hearted (白心) hero.

The Path of the Emiya Shirou who had killed Sakura. The Path of the Second Magus Killer. The Path of a True "Ally (Hero) of Justice". A "Superhero" without a "Happy End". The path of the Emiya Shirou with a Mind of Steel (鉄の心) and a Will of Iron (鋼の意志), the EMIYA that is destined to walk Endlessly, Eternally down The Path of Heretics (魔道)...

Enter a world where Shirou is not the son of Kiritsugu Emiya, but is the son of another. A world where he is not a direct participant of the Fifth Holy Grail War. What kind of adventures will he embark on? What will he see and what will he do? Only time will tell as we embark on this adventure of his.

A new Holy Grail War emerges. As Lord El Melloi II finally makes his move to rejoin with his friend Rider, he also braces for the future that this new Grail War will unfold. After all, everyone else has their own plans. But this is a Grail War, and nothing ever goes according to plan. Especially when someone hijacks the leylines, and another hacks into the framework itself!

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.

No tendrán de otra más que luchar juntos una 5ta guerra que se avecinaba. Probablemente sea lo mejor, ambos necesitan entenderse, aclarar todas las dudas y disgustos que han cargado en su corazón sobre el otro. Desembocando en la singular forma de como sus imperfecciones y diferencias se ordenaran para posibilitar la unión de estos dos seres distantes. Kiritsugu/Artoria.

The Dragon Witch and The Little Santa, both owes their existence to a certain Holy Maiden, while also representing a different aspect of that Holy Maiden. Now the both of them suddenly found themselves on a new land with their Master nowhere in sight, while a Great Holy Grail War looms on the horizon. What will their interference bring?

This is an Isekai story into the Nasuverse as an Elemental rising to be the Apex entity of Earth. the chapters are short, but the updates are frequent and there are long chapters. 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 is a story made by both Owenchaser and CosmicVlad.

Leonis is back to his usual antics while the Murder-Death-Kill rages in the background… But is that all there is? And why do the Clock Tower, Holy Church, and other major powers look like they're preparing for the End of Days?