The Ghost Heiress (On Hold)

***This fanfiction is not originally mine, but belonged to SarahJoyful. If you've read her version you know that she's giving up on this story, but I am continuing it. I am, however, making a few changes. I hope you can enjoy my version. :D ***

This is ancient Japan and the clans Sorenson and Academy don't get along.
The threat of a war hangs over them but the opportunity for peace between the clans has appeared, with the marriage between the two heirs: Will Winchester and Marie Sorenson.
Sang is a servant of the Sorenson household. She is a ghost.
The question is, what else is she?
A puppet?
A broken girl?
An heiress?

*This is a fan fiction based off of C. L. Stone's Ghost Bird series.