After dying to Contessa, Taylor's soul is sent into the Twisting Nether. An individual takes notice of her, and offers her a deal.

In the previous war, the Grail was cleansed of Angra Mainyu. In the 5th War, it was possible for a single wish to come true. 14 Servants vie for that Wish alongside their Masters. A Ruler watches over the proceedings alongside the one known as Blackwing. Let the 5th War begin, let a wish be granted at long last.

There were 9 Masters, Two children, Three magi, A dimension-walker, One Magus-Killer, A dead-man walking, and a Priest. Six of them got a Servant that came from the World of Dreams, a place residing in isolation within the Kaleidoscope. One of those Servants was the Remnant... the being who made that World, and once a child that resided upon Gaia.