E.S. Medusa

In every story, the villain died. Jessica had always thought that was fair, until she woke up as one.
Neria Virethorn was a disposable villainess, written to suffer and disappear. After breaking her engagement to a duke, her father treated her like a ruined object, making pain the primary language of their home. But her father wasn’t the greatest threat.
Sebastian Blackmoor, the crown prince and the story’s primary villain, was a man who viewed mercy as a weakness. Neria’s only goal was to stay small enough to survive him.
She failed…
After stumbling into a sealed royal vault, Neria accidentally bonded with a dragon egg that belonged to him.
The bond was permanent. Sebastian didn't see fate; he saw theft. He began hunting her with the cold patience of an executioner. Realising running was futile, Neria chose to interfere with the plot itself. She revealed Alistair…the rightful heir, the story’s "hero," and the man destined to kill Sebastian.
It should have been her escape. Instead, it trapped her between two blood-soaked futures: one where Sebastian destroyed her for her "theft," and another where Alistair used her as his reason in his war for the throne.
Neria was never meant to matter. But with a dragon bound to her soul and the narrative fracturing around her, she realised the truth.
This villainess was no longer a side character; she was the mistake the entire plot had to answer for. If she was destined to be the villain, Neria would become the kind that ruined everything.
“Fine! I’ll be your villain in this story!”