This article is not for profit making. This article is a fan work. It is my first time writing an article, so please bear with me.
After the Fifth Holy Grail War, after the disintegration of the Great Holy Grail in Fuyuki City, and after the end of the counterfeit Holy Grail War in Yukihara City.
There is a group of people who plan to use the power of the Holy Grail to reach the source. So... They planned this Holy Grail War...
Intention: No intention