Fantasy Fate/Hollow Liner Identity

Less than a year after the fifth holy grail war a sinister American organization known as "the Workshop" is holding their own modified Grail War, an event that seems purpose built to be a disaster. Tasked with bringing this conflict to halt before the damage is irreversible is a master who had both her name and her heart stolen by the Workshop years ago, and whose connection to the grail and the events surrounding it run far deeper than they know.