After being reincarnated into the world of a novel she once read, Marin Schventz finds herself living a difficult life in poverty while caring for her sick mother. Unlike the story’s important characters, Marin is nothing more than an insignificant background figure with no special status or power. With little hope for a better future, the only advantage she possesses is her knowledge of how the original story unfolds.

Driven by desperation, Marin takes a job at the estate of the blind Duke of the West, a man whose future in the novel is destined to end in tragedy. However, as she spends time with the mysterious duke, events begin to deviate from the original plot in unexpected ways. To her shock, the duke suddenly proposes an engagement, offering Marin a chance to completely change the course of both their lives.

Now caught between the fate written in the novel and the emotions growing between them, Marin must decide whether she can truly alter a future that once seemed unavoidable.