Su Mian, a female college student, transmigrates into a novel as the vicious female supporting character. To avoid meeting a gruesome end, she clings to the original story's villain and vows never to abandon him. Strangely, the novel's opposing sides seem to switch places because of her. The villain is neither evil nor despicable; he simply appears cold and ruthless because he carries the burden of an enormous revenge mission. Meanwhile, the so-called heroes become increasingly aggressive and arrogant, closing in on him at every turn. Using her intelligence and resourcefulness, Su Mian helps the villain and completely changes the story's ending, ultimately finding success in both her career and love.