Can one sentence change the world as we know it? If those are the right words, then yes, as Tony Stark, a successful, businessman carefree lifestyle is shattered when he learns he had a son with a woman shrouded in mystery. How will Tony life change, when he meets his Magus son and wants to be a part of his son's life? Let's find out. (Pre-IM 1, Crossover with RE/FNAF) X-Over

What happens when a hero and his little sister gets roped into an Otome Game? Watch as Illya-chan tries to deny marriage proposals from creeps and how Shirou-kun deals with being a king and a capture target. But could they accomplish their goals? Because this new world is more than it seems. CaptureTarget!Shirou, Villainess!Illya (Fate X The entirety of the Shoujo Genre)

At that fateful night when he stole the Forbidden Scroll, Naruto discovered something more than the Shadow Clone technique. A special ritual to summon a Servant.

Being reborn in a world of Gods and Campione was the last on my bucket list but being able to best a Goddess of Magic in her own game was damn satisfying. Now if only these Heretic Gods could leave me alone in my magical research. And if that damned immortal vampire would die already my life would be significantly better. But I guess we can't have everything. Multi-cross, SI-OC.

Gold Morning was supposed to be the end. The capstone of a short, frenetic career. Taylor Hebert's fight was supposed to be over. But the end of one story is often the beginning of another, and when she's offered the chance to take part in a mission whose scale and scope feel so very familiar, there's only one answer she could give.

Died due to an explosion, and then reincarnated into the world of tensura alongside 4 heroes of legend. he will learn that not all reincarnators start strong. [OC x harem, fluff. trolling. NO gamer system. Multiversal travel]

The SCP foundation's sole purpose is to contain 'anomalies' that pose a threat to humanity. This is a tale of an SCP-fanatic with little to no knowledge of the Nasuverse thrust into Nasuverse (in ancient times of the dinosaurs). What can possibly go wrong?

Despite having saved his life, Cardin Winchester chose to expose Jaune Arc's transcripts, ending the blonde's tenure as student of Beacon Academy. After a meeting with his family, Jaune Arc finds a different path to becoming a huntsman

Rin Tohsaka travels to Academy City to participate in the Fifth Holy Grail War, in order to win the Grail and fulfill her father's legacy. After meeting with a certain unlucky Level 0, she finds herself in an entirely unorthodox conflict, where the rules are utterly broken, and the world of Science and Magecraft collide. (Full Type-Moon/Index Crossover)

The Gods clamored for an encore, beckoning destiny to unveil the Second Act of the Clown March. As the curtains ascend, joyous laughter permeates the stage. Bell Cranel, infused with the essence of the Heroic Spirit Argonaut, begins his magnificent comedic adventure. Let the comedy unfold, for Argonaut, the eternal clown, takes his bow and invites you to join in the laughter.

The Far East. Rakia. Altena. Bell Cranel, humble boy from the mountains, had visited these and many other countries in the world, inhabited by incarnations of legends. Those with great fates are drawn to each other, those with lesser fates led by them, to the center of the world. Will he be swallowed by the gravity of Orario or will he make his mark, to reach the Throne at the peak

What happened if the famous King of Heroes was send to DaL? but as a spirit? read it R&R (FemGil! x Shido x Harem)

This is not the tale of Saints. This is not the Tale of Servants. This is Not the tale of a holy relic. This is not the tale of the Masters who seek the relic. This is a tale of those who walk the bath as ones who protect. Where there is light shadows lurk and fear reigns yet by the blade of Knights mankind was given hope.

The difference between a bandit lord and King was the adherence to a just law. Punishment had to befit the crime and no man, lord or peasant, should be given impartial favor over another. As King of Britain, the Once and Future King, she would be damned to allow a Wyrm to burn a child alive.

People of power taken down. A false god shot. A fake paradise eradicated. One would think that for Ren Amamiya, leader of the Phantom Thieves, his adventures were over. However, a blood donation would turn his life upside down as he takes an offer from the Chaldea Security Organization - and once more fight for the fate of humanity.

Bell Cranel wants to be a hero. He adores heroes. What if Zeus told him about heroes that transcended Tenkai and Gekai? What if he gave him a skill that let him become a hero, albeit a fake? This is the story of a boy who yearns for the throne and his journey to join those who have reached it. Pairings undecided, leaning onto Bell x Ryuu and Syr.

Escaped from a land of hate, a Roundtable Alliance shall be gathered to retake the Kingdom, the Hero shall rise above all. Fate/Grand Order: New Order- The Dark Age of Chivalry-Melromarc: "But at what cost would victory shall be paid?"

The Kaleidoscope: the essence of Second Magic, containing within it countless parallel worlds. A place where all possible realities exist, where fantasy meets reality. Worlds of Holy Grails, of Masters and Servants...and Riders.

Beyond the Human life, beyond from the Sea of Stars, a power beyond my reach shall soon be in my palms to control and use. In now a digitized World, I am one step closer to my goal of becoming a God. I shall use the power of the Gods to ensure my legacy, my Eternal Empire, and my ideal future for Humanity shall be eternal. Fate/Grand Order: New Order- The Umbral Star: Patricius.

In which Shirou and his ladies wind up at Chaldea as the facility's newest cooking staff on D-Day. WARNING: Mature Themes Abound!

The kindness of a man who wished only to be normal. The determination of a man who wants only to better his race. The arrogance of one who dictates life. A boy who desires to live his ideal life. Stories of suffering and parting, stories of love and hope. They shall all converge on their pilgrimage that is life.

Ex-Counter guardian EMIYA is now a loop administrator at first it seems like a good idea except how will he deal with all the craziness that comes with reliving your life for a couple hundred years oh not to mention that other loopers can Crossover into his world

Daenerys, a French transgender girl with a love for mythology, is sent to My Hero Academia by Zelretch. Her Fate series obsession and expertise in mythological history become crucial in this new world. A knock on her door heralds a life-altering event, thrusting her into a crossover of heroes and legends, where she must navigate destiny's twists for better or worse.

After sacrificing his arm before his demise, Emiya fulfilled his desires to never let the past repeat itself. The man expected to return in a land surrounded by swords, waiting for his next orders, forever alone and broken. Unbeknownst to him, fate had other plans for the Counter Guardian... one that came to fulfill his long desired wish.

The Fujimaru twins weren't the only masters that the servants within Chaldea Had. There was a third who appeared in the middle of the seven Singuarlites from a different timeline from theirs. The 3rd master gained self-worth and matured greatly among the twins. Went through the Epic of Remnants and unfortunately like with the Fujimaru twins forced to become...(Full summary inside)