The Villainess Who Edits Reality

Jessica Parker wakes up inside a novel as its cruel supporting heroine, a woman who is in fact the real heiress of the family. A system placed in her mind lets her reshape the original storyline. She has been given three tasks: keep up the villainess act, act out the story's pivotal scenes, and escape the doomed cannon fodder ending that awaits her character. Every change she makes to the plot puts her survival at stake.