While trying to twist the original story, I ended up seducing the Northern Grand Duke

"Somehow… I feel like I’m going to ruin everything by trying to twist the original story?!" I possessed my favorite romance-fantasy novel, the one I had read over and over again—even down to the side stories. And of all people, I became the pathetic villainess, a duke’s daughter who gets engaged to the crown prince only to meet a miserable end. To avoid dying, I resolved to twist the original plot. But then— "I’ve brought the engagement contract with the Northern Grand Duke, Lili!" A few days later, my crazy father showed up not with the crown prince’s contract, but with one binding me to the Northern Grand Duke. "I’ve liked you for a long time, Lady." And he even came with the real-life version of the Northern Grand Duke himself. The bigger problem is… The Northern Grand Duke—the original male lead—is determined to seduce me. "Do you know? Just how much your eyes are shaking up my heart."