Umbrella tag for the dark version of Jeanne d'Arc from Fate/Grand Order. Also called Jalter for short by fans.
Unlike the other alter servants, Jeanne Alter is a separate entity of the original Jeanne d'Arc. She was created by Gilles de Rais, who was so obsessed with Jeanne that he used a corrupted Holy Grail to "revive" her. As a result, she is a polar opposite of Jeanne, as she wished to destroy France rather than protect it, as she blamed the very existence of France as a cause of her "original" death.
She is often depicted as being tsundere in official and fan works, and being somewhat annoyed (though secretly admiring) that the original Jeanne treats her as a sister.
