What if: by Flagarach

The Einzbern summoned a Gap Demon instead of All the Evils in the World during the third holy grail war? Follow the fifth grail war, now with a Gensokyan servant cast! All rights of the characters go to ZUN and Nasu.

54665 words in 8 chapters

requested 2021-10-14 17:16 UTC

source: https://www.fanfiction.net/s/9848243/1/What-if