In Final Fantasy XIII, Vanille is separated from her childhood friend and appears alongside Hope Estheim and his mother Nora as a Purge victim. She gets drawn into a conflict that forces her to confront her past demons and decide Cocoon's fate.
In Final Fantasy XIII-2, Vanille makes a cameo appearance alongside Fang when they meet Serah Farron in a dream world.
In Lightning Returns: Final Fantasy XIII, Vanille is gifted with remarkable power and lives under the care of a religious cult called the Order of Salvation.
(Source: Final Fantasy Wiki)
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