Jin Xuan'er takes her older sister's place and marries into the prestigious Gu family to bring good fortune to her supposedly ill husband. While concealing her identity, she discovers that her husband, Gu Feng, is just like her. He appears cold and distant, playing along with the act, but secretly probes her background. From the pretenses of their wedding night to their daily interactions and mutual attempts to figure each other out, the two gradually let down their guard through one performance after another. Eventually, their charade turns into a journey to find true love with each other.