"There were three Kings summoned to the Grail War. The King of Conquerors, the King of Heroes, and the King of Knights. As for class, we are all summoned into a class depending on what we are known for in our histories. The common classes are Saber, Lancer, Archer, Rider, Assassin, Caster, Berserker." He jabbed a thumb at his own chest with pride. "I am a Rider."