Fate/strange Fake

The Holy Grail War: a competition in which Mages summon Heroic Spirits and vie against each other in pursuit of the Holy Grail, a wish-granting machine that can grant any and all wishes. Several years after the conclusion of the Fifth Holy Grail War in Japan, the next war is about to manifest in a place called Snowfield in the western United States. It is a Holy Grail War that is full of false things. Mages and Heroic Spirits have gathered together on a false pedestal. Even though they know that this is a false Holy Grail War, they continue to dance on the pedestal. What is true and what is false will be settled in the next life. They do it not for the Holy Grail but to uphold their own beliefs and nothing more.