The blind Su Qingyin makes a living setting up a fortune-telling stall in the capital, using a single red thread to divine people's romantic destinies. By a twist of fate, she accidentally connects her thread to Lu Zhiyu, a sickly young heir. Everyone knows that he is cursed to bring death to his wives, yet the red thread refuses to loosen its hold on him, insisting that the two are destined to be together. She treats his parasitic curse and helps restore his health, while he helps her investigate the enemies who massacred her entire family. Until the truth is finally revealed: the one who slaughtered her family was none other than the Crown Prince himself. And Lu Zhiyu was there in the Eastern Palace's main hall that very day, forced by the parasite within him to watch helplessly as the massacre unfolded. With her enemy so close and the red thread's backlash growing increasingly severe, Lu Zhiyu locks Su Qingyin away in Changming Temple to protect her, then goes alone to attend the Crown Prince's deadly banquet. But she has never been one to sit quietly and wait—