Jean Tohsaka is the eldest daughter of Tokiomi and Aoi Tohsaka. When her father enters the war, she stays in hiding with the rest of her family. That is, until she runs into the Caster Class Servant. After one run in she gets dragged into the Grail War. She struggles to survive by putting her magic to the test. But, what is the strange voice that's in her head? And why does she black out during fights? [1st Book in the Guardian Series] [Currently Editing]

Just a idea I got inspired from the Fate Series in general and I don't really have a good summery to put but just to explain the plot a bit. The child of Shirou Emiya and his Servant Saber aka Artoria Pendragon is sent into the world of DxD. The world shall see what a true holy Sword is as the child of infinite blades becomes a hero of justice in his father's place.