Avenger is from the anime series, Fate/Grand Order. She is the Avenger-class servant in the Great Holy Grail War. Her true name is Jeanne d’Arc, the Saint of Orleans. A Catholic saint born in Domremy, France, and the heroine of France who liberated Orleans in the Hundred Years War. Avenger is the Altered version of Ruler-class Jeanne d’Arc. Although designated an Alter, it does not mean that she is a different aspect of Jeanne d’Arc.