The Duke's Obsession With His Wife

Anriette may look like an average noble, but she's actually a human who's been transported into the world of her favorite novel, cursed by its author for writing fanfics critical of the original ending. And as Anriette, her fate is to be slain by the very male lead she wrote her fanfics about! Can she use her inside knowledge to craft the ending she always dreamed of for her favorite lead?