My Villainous Life as a Book Character

A modern woman with ironclad principles wakes up as the villain in a twisted fantasy novel—and she's not happy about it. Trapped in a world where morality runs backwards, she must navigate her new role as a feared overlord while dealing with a mysterious 'background character' whose bizarre logic might be the key to her survival. Can she rewrite her villainous fate, or will the story consume her?