Upon the deaths of the seven Servants of the 5th Holy Grail War, the Heroic Spirits expected to disappear. What they did not expect was for them to be summoned once more to fight in the Holy Grail War, this time, as Ruler's own faction in the war against other Servants. The Great Holy Grail War commences with three factions rather than two!

Harry has a new Defence Against the Dark Arts teacher. He's big, has a southern accent and wears red armour. NOT A HALO CROSSOVER. THIS IS A RED VS BLUE CROSSOVER. Contains insubordination, shotgun blasts and some Draco and Ron whumping.