Primrose Sterling transmigrates into a novel, becoming a cannon fodder supporting character forced to marry the main villain, Alaric Hawthorne. She is a villainous princess who treated Alaric with extreme cruelty. To avoid being killed by him, she decides to strike first. However, after Alaric dies, a system informs her she can only return to the modern world by dying at his hands as per the original plot. If she fails, she will be erased.