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 origin for why they're far from home. An alternative version of FGO Observer on Timeless Temple.

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 (Canonical) 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.

The title says it all. A What-if scenario where master Artoria is in Fate/Grand Order world.

AU 2014. 10 years after the Fuyuki War, the Grail is history thanks to Rin and Waver. Yet all over the world, strange phenomena are occurring and marks are being drawn on the hands of mages. Trapped in an ancient mausoleum that could become her own tomb, Professor Fleury finds herself chained to a bloody and relentless conflict. [Complete]

Shirou Emiya (me) is a Psychic; the only one at the world at that! He can move things with his mind! Read the thoughts of people against his will! He knows every little secrets his family hides from him and he hates it! He has only one goal in life; Live a normal life like any normal child away from the Moonlit world (impossible).

Love and hate. Two emotions that are so different, yet there is a thin line between them. Mordred's hate had driven her to slay the king the had loved after a fatal miscommunication. But what if the love Mordred held for her sire had been stronger than her hate? See how the Knight of Treachery, despite the misfortune of her birth, moved past her hate to change the destined clash.

Alaya is gone. The Counter Force is gone. Without them, the Throne of Heroes released all the Heroes on Earth against the planet's will. When Gaia sensed that the World is on the brink of collapse, she sent its First Hero to fix the mess. Now, Shirou Emiya has to save the day once again. What can a Retired God, a Treacherous Knight and a Boastful King do to save the planet? [AU]

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?

UA 2014. 10 ans après la guerre de Fuyuki, le Graal est de l'histoire ancienne grâce à Rin et Waver. Pourtant, partout dans le monde, des phénomènes étranges se produisent et des marques se dessinent sur les mains de mages. Prisonnière d'un mausolée ancien qui pourrait devenir sa propre tombe, la professeure Fleury se retrouve enchaînée à un conflit aussi sanglant qu'implacable.

Twelve years after the fifth Holy Grail War, a new one begins. However, the rules aren't quite the same. Twenty-one Servants. Twenty-one Masters. Three Factions striving to gather the Grail Shards scattered around the world: the Masters of Red from the Mage's Association; the Masters of Black from New Edge; the mysterious Masters of White.

Kirei Kotomine, at the temptations of Gilgamesh, gave in to his dark desires and caused a flood of death and tragedy. But, what if he didn't give in and remained true to his ideals? A cavalcade of changes would follow. The birth of the makeshift family of Kirei, Rin, Sakura, and Caren. Another makeshift family of Artoria, Irisviel, Illyasviel, and Gray. This is a new Fate.

AU. Hakuno Kishinami, a quiet girl who is not interested in anyone. But her life turns upside down when she meets a beautiful girl who teaches her about the meaning of life.

if emiya summoned as a berserker

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.

UA 2035. 20 ans après la Guerre du Graal de Paris, le monde pensait qu'il avait tourné la page de ses horreurs. Pourtant, l'Aragne resserre les fils de sa toile et attire les mages en Irlande vers un piège sanglant, dans lequel une étudiante, Emily choit lors d'un crash d'avion. S'alliant à un chevalier élusif, Emily pourra-t-elle arrêter à temps la machination ? [En cours]

Refusing to believe her father abandoned her, Illya runs away to Japan. Being reunited with one another, the course of fate has now been changed. Under the care and tutelage of Kiritsugu, how will the fifth holy grail war turn out? R&R please.

Seven years have passed since the global T-Virus outbreak. Sakura has stabilized her sister, and has focused all her efforts into perfecting her Art. All that's left now is to bring it all to a logical conclusion, and so she returns at last to Fuyuki City. Sequel to For the Future.

Or 'How I ended up coaching a poor chibi through her tremendously Ecchi life' (Self-Insert Teacher Story)

a boy named Shirou however a mysterious awakening of his "true self happens and now it's up to him to deal and transition in to the change UBW canon is the followed canon btw"

De verdad no esperaba nada de la vida, simplemente resignado pero aceptando sus acciones, pero de la nada fue arrojado a través del tiempo para ver una vez más a uno de los reyes más grandes de la historia y aquella mujer que profeso a amar.

Welcome back everyone, this time, I present to you the official Nasuverse Infinite Loops compilation. The stories beyond time that cross many worlds. Welcome to Yggdrasil, and the Infinite Loops Project, presenting our heroes from all across the Nasuverse! Be it Stay Night, Grand Order, Tsukihime or more. You'll find their tales here. Let the Infinite Loops continue onward

Atalanta had won. The Holy Grail War was grueling, and she was at death's door, but she had won. Barely able to speak, she uttered her wish. Unfortunately, she wasn't able to state her whole wish and the Grail misconstrued it. With the help of the Second Magician, Atalanta now has to protect the children that need her the most, in her own way.

Another Great Holy Grail War is set to happen in Tokyo, Japan. Fourteen Masters and Servants, two Factions. Red and Black. Each one of them will try their damnedest to win it and grant their wishes. However, at the same time, a storm is approaching. A greater disaster is looming in plain sight, unable to be comprehended, unable to be understood. It comes from beyond the Void...

Diarmuid Ua Duibhne was trapped within the tainted Grail: to be corrupted and damned. In Hell's Lobby, he is approached by a strange woman. Not strung in by his love spot, she proposes an unlikely partnership for an orchestrated Battle Royale among the Damned. With his soul at stake & salvation as his reward- he takes the opportunity for redemption- one, final time.

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.