Hakyoku Yotei no Akujo no Hazu ga, Reitetsu Koushaku-sama ga Wakarete Kuremasen!

After reincarnating as Grace, a minor villainess in a novel, she discovers that her survival depends on fulfilling a very specific role. Grace is written as a greedy, man-crazed antagonist whose sole narrative purpose is to toy with the cold-hearted Duke Zain and eventually discard him, thereby setting the stage for his fateful meeting with the story’s true heroine. The stakes are absolute: if she fails to execute this breakup exactly as the plot demands, war will erupt, and Grace will meet a tragic end. Determined to avoid this doomed fate, she resolves to play the part of the heartless villain flawlessly. However, executing such cruelty proves far more difficult than anticipated. Grace’s inherently earnest and kind personality constantly undermines her attempts to act maliciously, preventing her from fully transforming into the wicked character the story requires. Rather than growing disgusted and walking away as the script dictates, the supposedly detached Duke becomes unexpectedly captivated by her. Instead of ending their engagement, Zain grows deeply obsessed, doting on her and declaring that he will never let her go. Now, Grace faces a desperate dilemma: the more she tries to push him away to save herself, the more fiercely the Duke clings to her, threatening to derail the entire story.