since all of these have been discontinued I'll write one following a similar story. Spoilers for fate kaleid liner prisma After the events of Fate Oath under snow and fate kaleid liner prisma at the point where kuro had disappeared Shirou. decided to make a deal with alaya to sacrifice himself to bring kuro back as a real girl so she would worry about dematerializing all the time. Alaya accepted the offer but realized this might be the best choice for a mission that none of her other counter gaurdians could handle Alaya has left shirou a little surprise by giving him his Archer self abilities, all his class cards and a magic crest which held a great deal of mana. Now Shirou will need to Survive a Grail War but not one he is used to.

Here is a bit of what I envision of a servant version of Shirou Emiya, not any version of counter guardian Emiya, but the of from the Fate Stay Night Series.

Gaia, por fin, mató a Alaya, pero aún no ha logrado la victoria. En su último grito para salvar a la humanidad, Alaya extiende sus brasas moribundas por todo el mundo. Emiya Shirou es uno de esos fragmentos, una encarnación de la expresión de Blade de Alaya. Pero a medida que los fuegos de la Cuarta Guerra eliminan este aspecto de la humanidad, ¿qué queda de Shirou? (Contiene un saber original, Depredador! Shirou) Autor: Arrixam https://m.fanfiction.net/u/3158997/