The Villainess is a Marionette

Read Manhwa The Villainess is a Marionette:

The Imperial Princess Cayena was regarded as the most exquisite woman in the Empire. She was a woman who had only ever experienced wealth and evil.
But she was doomed to failure—her insane husband would murder her and her younger brother would use her as a pawn in his chess game to seize his crown.

“I’m going to crown you Emperor.”
“Sister, are you talking about me?”
“Please grant me freedom in return.”

Before she could be that Cayena, she had to make certain changes.