She wakes up to find herself in an ancient world, where a woman's fate is like a drifting duckweed, confined to the inner quarters.
The good news: the original owner was a woman disguised as a man.
The bad news: the original owner's reputation is dreadful. She has a pretty face but no learning, and is a spoiled, useless wastrel.
The even worse news:
Her family is riding high, its prosperity as fragile as a dream or a bubble, ready to burst at the slightest touch.
The country is beset by internal and external troubles, its lands teetering on the brink.
Since she is here, she might as well make the best of it.
Now that she has a legitimate identity, why not take advantage of it?
Once she reaches the top, there will be great scholars to argue her case.