Rebelcaptain AU | Downton Abbey
News about the sinking of Titanic spread across the world and reaches the countryside of Lah'mu. The Earl and Countess of Lah'mu, Galen and Lyra Erso, hear about the news and learn that Galen’s second cousin and his son were on board. After learning the news, Galen and Lyra must find another cousin to become the next heir of Aria Abbey because they only have a daughter, Jyn, and she can’t inherite the title and the Abbey.
Later, their distant male cousin, Cassian Andor, comes to the Abbey and becomes the new heir. He feels uncomfortable with his new life in Lah'mu since he was an upper-middle-class in his hometown, Fest.
As time goes by, Jyn and Cassian develop their feelings for each other despite they try to deny it. But when the Abbey is threatened by bankruptcy, it’s up to both of them to save the Aria Abbey from it.