Hey, everyone! So while I know how a lot of people like this story but after rereading and reviewing this story, I just don't like the concept much anymore. Or at least I think I made Shirou a bit too OP. That's why I'm thinking of rewriting this story with a less powerful Shirou.

Here's the concept.

Shirou Emiya, Chaldea's 48th Master, is sent alongside Chaldea as a whole is sent to the DxD world, landing in Antarctica. Searching for elements of his old world, he finds the city of Kuoh where Fuyuki would have been, and after prodding from Irisviel, he moves there with teleportation magic from the Caster Servants. There he is forced to go to school and Irisviel gets him into Kuoh Academy, though she hypnotized them.

In the DxD storyline, it starts with the usual Issei turns into a devil storyline.

In the FGO storyline, I'm deliberately keeping where they are in the story vague on purpose. It will definitely be after all the Singularities and the defeat of Goetia, along with the Epic of Remnant storyline. While I probably won't make comments about the Lostbelts, the Servants that existed in them will appear. You also might see Servants not in Fate/Grand Order like Charlemagne or others that haven't been seen in the game.

As for Shirou, he originally comes from the Miyuverse, coming directly after the events of Oath Under Snow. And while Shirou isn't as ridiculously powerful as the Shirou I made from before, he has been getting buffs from his many Servants (mostly his author Servants). Like Andersen's Noble Phantasm boost, items made by Caster Servants' Item Construction skills, or enhancements brought by the Skills of Servants. Also, Chaldea and their collected Holy Grails are providing major magical energy for him, giving him a near infinite amount of energy, which in turn will allow him to produce Divine Constructs.

For a more confusing part, I'm going to talk about Servants' multiple forms. Servants will usually only exist in one Servant class, only having one version existing in Chaldea. However, they retain the option to change their class using an invention I'm having da Vinci create. However, it's possible that certain Servants can change their class or form with special conditions (like Artoria changing her into her Alter form by pulling off her ahoge or Saber Gille de Rais turning into Caster by activating his Book of Prealti Noble Phantasm).

Now to talk about everyone's favorite part. Harem. Shirou naturally has harems with a bunch of his female Servants: Mashu, Artoria, Kiyohime, Tamamo no Mae, definitely Parvati, maybe Frankenstein, etc. Servants in relationships with each other or have their own relationships aren't going to be in the harem (like Brynhildr and Sigurd, Semiramis and Shirou Kotomine, or Cleopatra and Caesar).

Additionally, I'm holding a poll on whether or not Issei should be a devil or not. It'll be up shortly.

I'll probably have the overall plot more developed later but for now I'm going to focus on some of my older stories before I start on this one. Anyways, see you all later!