Elder Scrolls Fanfiction Crossover

My elder sister, Emma Rothschild, longs for a life of luxury. As such, she requests to marry the prince of Northia, Matias Redburn. On the other hand, I'm married off to an elven scholar visiting human territory, Aleron Glintwood. After the wedding with Emma, Matias leaves Northia and visits the giant clan's territory to establish a trade route. He's never heard of again. Meanwhile, I accompany Aleron to Empiria. He obtains a teaching position at the Royal Academy of Magic by virtue of his elven talent for magic. As for me, I become a highly envied professor's wife. Emma continues to live alone in the Northian Frozen Plains. She's later discovered to be having an affair with a human knight. When the Draconian Council of Elders exiles her from their lands, our father—Gareth Rothschild—furiously declares that he's severing ties with her. She's thus forever cut off from the Rothschild family. While I'm on my way home for the festival, Emma forcibly stops my carriage. She begs me to take her home and put in a good word for her. Along the way, she suddenly grabs the reins. As a result, the carriage goes out of control and tumbles over a cliff. When I regain consciousness, I see Emma on the floor. She's crying and demanding a change in engagement plans. At that moment, I realize that she's also been reborn. However, Emma doesn't know that life with the elves isn't as wonderful as she imagines. I immediately begin preparing for the magic academy's entrance exam. This time, I'll spare no effort to be admitted into the academy myself.