An Illusory Existence

by Nameless Phantasm

The Holy Grail: a device whose sole purpose is to summon seven Servants for the sake of fueling a Wish. Ordinarily, Servants whose Legends were made in Reality would be summoned. But, what if an event occurred that would allow for the summoning of Servants whose Legends were made in Fiction? Note: This is currently only an Idea. More details are inside.

1. Idea

This is a story idea based upon seven postulates.

1: An individual with the psyche necessary to summon either Nursery Rhyme, or an existence whose concept closely resembles it, exists within the world of Fate/Stay Night.

2: This individual either resides within Fuyuki, or somehow manages to arrive there before the Third Holy Grail War.

3: This individual is chosen to participate within the Third Holy Grail War

4: For whatever reason, the Einzberns decide not to meddle in the workings of the Grail War as visible in either Fate/Apocrypha, or Fate/Stay Night.

5: Angra Mainyu does not infect the Holy Grail

6: Somehow, the individual stated previously manages to summon either Nursery Rhyme, or an existence close in concelt to it as their servant.

7: The individual loses their servant within the Third War, resulting in it entering the Grail

By these seven postulates, it may be reasonably argued that the existence known as Nursery Rhyme may infect the Holy Grail in a manner similar to Avenger. Its existence as one from a Fictional Story, created by the wishes of one longing for their imagination to become reality, may result in the ability to summon Fictional Servants rather than the Antiheroes seen within Fate/Stay Night.

For any that may see fit to utilize this idea for a story of their own, please do make sure that you execute it in a logical manner, one that which follows the various laws of the Nasuverse to some degree. It would be irritating to observe a story based upon this concept that is poorly written.

I may eventually utilize this idea to construct a fanfiction of my own, however that is unlikely. Thus, I am posting this idea as a challenge of sorts for others. See if you could make a well written story, that which follows this concept. It would be interesting to see a War fought between Servants of the Real and Fantasy realms.