Rias Gremory, desperately in need of a helping hand to save her future summons a legendary hero from human mythology. Some call him The Child Of Light. Others call him The Hound Of Chulainn. His teacher calls him a pain in the ass boy who doesn't have any manners and should stop calling her old. Everyone else knows him as the goodest of boys, Cu Chulainn.

A normal boy stumbles into a very abnormal situation when he saves a girl who didn't really need any saving. With the help of his Sacred Gear and some clever tricks, can he survive in this world that seems determined to spit in the face of common sense?

After his sacrifice to destroy the Grail, Shirou is now reborn as Hyoudou Shirou by the power of an Old God. Rated M because it's Highschool DXD and things might become spicy later! FemIssei as Sei!

Did Shirou have a clue what was going on? No. Not really. But that was nothing new. In fact, all of it seemed oddly familiar. Everything was the same, from the hole in his chest, to the black haired girl with a glow red object. Now he was involved in a war that previously had nothing to do with him, with the fate of the world hanging in the balance. So you know, same old same old.

While exploring a rogue Singularity everything goes wrong when Ritsuka falls prey to the schemes of a Foreigner Servant who uses a Holy Grail to transform the hapless Magus into one of the Outer God, Shub-Niggurath's, Dark Young. Now cast into a strange new world of angels and devils can the wayward Master find her way back to Chaldea?

With the discovery of a new world on Chaldea's part, one unlike anything they've seen before, an exploration team is set up to uncover the mystery of this world of Demons and Humans alike.

IT is just a soul amid nothingness, searching for salvation armed with a sincere desire to protect others makes IT enter the supernatural world of gods, angels, and demons. Whether IT can change a future filled with destruction, only The Root knows for Its answer.

In a world in which humanity never parted ways with the Gods and became the dominant species, an unexpected variable enters to disrupt its delicate order. After regaining his memories as the nameless hero King of Fakers, Emiya Shirou will have to teach this world why humans cannot be underestimated, and show them all what means to be a real hero.

Chaldea was not merely an organisation, but an ideal. Beyond just the Grand Order were the unbreakable bonds forged between the last master of humanity and his servants, his companions, his friends. Without him, it would be up to them to spread his story so that he would not be forgotten by the world, even if it was a foreign one. Was it not after all... His one and only story?

Who would've thought being in the World of DxD would be the first place I'd be in after a strange dream. Now I learn I'm the heir to the King of Britain and ruler of Camelot, Arthur Pendragon. This is now my path of Fate. (OCxHarem) (IsseixHarem) Rated M for language, future lemons and blood.

OC recreates his own type of Gamer Magic with the help of his Sacred Gear - Telos Karma, granting him the power to create anything his heart desires. Luckily for the young Magician, he won't be alone on this journey either; and his partner has a few ideas on what he can do with this world-breaking magic of his. Eventual OP. (Solomon x Tiamat)

Emiya have decided to walk in the path of a villain for the sake of saving his little sister, Miyu, from her cruel fate. Unknowingly, his action has attracted the attention of the second magician whom decided to throw him away into a parallel world where he must save that world from its impending doom as a form of punishment. How will his story play out?

En noches tormentosas como esta, eran las que podía darse el lujo de ser llevada por la tristeza y la nostalgia que siempre se hallaban en su corazón. Los truenos cayendo afuera, junto a las gotas de lluvia eran una buena forma de llevarla de regreso al mar, a las risas, a las bromas, y a lo desconocido. Añoranza domina su ánimo junto a la melancolía, y ahí Aria se permite soñar.

Issei from Third Fang's "Go Away I'm Watching Porn" gets transported into Fahad09's "A Demon Lord's Hero."

Countless stars, an endless pilgrimage, the last hunt for the Beast of the End, countless reprieves and tribulations. . . Why the fuck I was roped on this shit!(Proto-Arthur SI in DxD x Slight Coo Coo MC)

Emiya Miyu was thrown into another world. A world where she won't have to suffer any longer. A world where she meet kind people. A world where she find friends she can laugh. A world where she can find a small warm share of happiness. Everything began when she met a kind boy named Hyoudou Issei.

The Grail acted upon the wishes of the victor, but Shirou was so broken, that he had no wish that the Grail could use, for his mind and fractured and almost completely destroyed. Therefore, it decided to compromise, and sent him into a place were someone as distorted as he is could live once more.

Kiritsugu Emiya, one of the most infamous names in the moon lit world finally passed away in the peace of his home. However, now he finds himself in a world where the Age of Gods has never ended. Seeing this reincarnation as a chance at redemption, he will try his best to atone for his past. He will however now contend with more dangers and secrets.

Arthur in his quest to end Beast VI is summoned to the world DxD and is the servant of a very peculiar person. I'm bad at these summaries so just read if you want to know more.

After the hole left by the holy grail engulfed Shirou, He wake up in the new world. Trapped in this world, Shirou must learn how to live his new life together with the familiar faces back home. Even with that, will he go back home or remain in this world? Let;s also not forget about the new people he will meet along the way and what really they are.

What to do when you find yourself with the body of your favourite character in another world? Do you live your life peacefully or do you look for adventure? well let me tell you something, whatever it happens in this journey, the only thing I know its that Mashu Kyrielight is no one's Harem girl!. this is an FGO/DxD crossover with The gamer elements I hope you like it

On the day before he was to die, Issei Hyoudou received a deck of cards, albeit very bizarre ones. The next day, just before Issei is about to be to killed by Raynare, an unknown power awakens within. Reviving lost souls? Cute monster girls? Angels and demons? Not quite what he pictured his life when dealing with insanely hot women. Non-SG Issei/Heaven's Feel Issei

Shirou from Fahad09's "A Demon Lord's Hero" suddenly finds himself in Third Fang's "Go Away I'm Watching Porn". If that premise is a turn-off, or if you think EVERYTHING Third Fang does is right, you're not gonna like this at all. You've been warned. (NOTE: Now has a TV Tropes page! Thanks Mr. Cheapsunglasses!)

Shirou had always been an odd child. Chasing a past he couldn't have lived through, yearning for dreams he couldn't have had and missing people he couldn't have known — Kōsetsu Shirou struggles in vain to navigate a world where the supernatural is natural. Some mysteries, however, are beyond even the Devil's grasp; Truly, reincarnation is the greatest of punishments.

This isn't the story of a boy who dreamed of becoming a hero of justice. That's someone else's story. This is the story of a boy who simply wished to protect his family and loved ones... but it came at a heavy price... one that I later came to regret. Everything changed when I accepted that offer... and shouted those two words.