How I would react if I were transported into a romance novel as the villain

When Serena, the notorious villainess of the romance novel *The CEO's Substitute Wife*, suddenly wakes up in a hospital bed, she is greeted by a system notification: "Welcome to the world of *The CEO's Substitute Wife*. Your identity is: the villainess, Serena." As she processes her new reality, she realizes she's been transported into the very story she despises, doomed to a tragic fate of losing her family, her sanity, and her life.
Haunted by visions of her grim future, Serena vows to rewrite her destiny and break free from the narrative's cruel grip. She begins by stepping aside from her engagement to Elliot, the cold-hearted CEO, and apologizes to Selene, the kind-hearted female lead she once tormented. But as Serena tries to change the plot, she discovers that the story has a will of its own, forcing her to navigate a web of schemes, betrayals, and hidden truths.

Amidst the chaos, Serena crosses paths with Lane, the enigmatic and reclusive second male lead who harbors secrets of his own. As their fates intertwine, Serena realizes that Lane may be the key to her survival-and perhaps, her happiness. But with the system warning of major plot anomalies and the worldline threatening to reset, Serena must tread carefully.

From faking her way out of dangerous situations to uncovering the dark forces pulling the strings behind the scenes, Serena's journey is fraught with challenges. Yet, as she learns to trust, forgive, and love, she begins to transform from the story's villain into its unexpected hero.
Will Serena succeed in rewriting her fate, or will the story's predetermined ending consume her once again? In a world where every choice matters and every twist could be her last, Serena must fight not just for her happy ending, but for the chance to define her own story.