With the Fourth Holy Grail War still raging and no clear victor emerging, Church overseer Risei Kotomine calls the surviving Servants and their Masters to unite against a looming danger that could unravel the war and bring ruin to Fuyuki City, whose fate now hangs in the balance. The fragile cease‑fire shatters swiftly as Masters reveal they will use any means, however despicable, to secure triumph—ready to betray allies, sacrifice innocents, and cross moral lines. Seeds of doubt sprout between Kiritsugu Emiya and his Servant Saber as their conflicting ideas about heroism and chivalry clash. Meanwhile, a sinister bond forms between Kirei Kotomine—still searching for purpose—and another remaining Servant. The force manipulating the war"s outcome has already begun to dismantle alliances, threatening to collapse everything. As the final countdown reaches zero, the cost of victory blurs the line between success and defeat.
