Oathkeeper | A Jaime Lannister Story
18 parts Ongoing This story follows Alys Stark, the eldest daughter of Ned and Catelyn Stark, and Robb's twin sister. After her brother Bran's tragic fall, she decides to stay within Winterfell's walls with her mother and brothers, while her father and sisters travel south to fulfill the King's petition. A sudden turn of events pushes her to join Robb in his quest to retrieve their family back to Winterfell, but an unexpected diversion from the original plan sends her towards a completely different set of affairs, in which she learns that life is no fairy tale, men are no «Princes of Dragonflies», and the Game of Thrones will take, and take, and take from her until all she is left with is the need to fight back with teeth and claws.
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About the ages:
This is a Jaime Lannister x OC story after all, and I'm not very keen on huge age-gaps, so let's say that Alys, Robb and Jon are 20 (approximately) and Jaime and Cersei are in their early thirties (which is still a big gap, but at least it's legal).
-Everything apart from the original characters and storylines belongs to George R. R. Martin.