Being known as the Villainess

"You created the tale, and yet people see hatred in you, how pitiful; would you like me to pursue vengeance?"

A regular Korean girl was reincarnated into a narrative she had previously read, but she had forgotten most of the specifics because the story was destroyed a year later. No one knows who wrote the book.

Princess Leticia, whom the readers despise, was her reincarnation. She was despised for being feeble, but the female protagonist adored the person she reincarnated as. She thought she was pitiful. As a result, she chose to exact vengeance on Princess Leticia.

She never expected more than five people to like her, so who would she cast as the male lead?