Yu-Gi-Oh! 5D's episode 20: "Second Round Showdown, Part 1"
Annie is Greiger's sister. She is part of a tribe that descended from those who served the People of the Stars. It is implied that she and her brother Max live in poverty, since Greiger was working to get aid for their hometown.
Although, Greiger originally thought that Rex Goodwin had sacrificed her hometown in an experiment to summon the Crimson Dragon, in actuality, the souls of the villagers were swallowed by "Earthbound Immortal Chacu Challhua". Annie was freed with the destruction of "Chacu Challhua".
During Yuseis duel agansit Z-ONE she and her brothers are seen cheering on Yusei