Because Yun Shu looks exactly like the late empress, he is given a marriage to the prince Lin Chen by an imperial edict; the prince never forgets the late empress and sees Yun Shu as a thorn in the side of his blasphemous memory, so he speaks coldly and humiliates her on their wedding night; Yun Shu holds back and secretly investigates the old case of his father's unjust murder, and discovers that it is related to the influence of noble concubines and relatives in the palace; the prince creates difficulties everywhere, but Yun Shu overcomes the toughness with softness and takes advantage of the prince's opponents. When the prince was assassinated, Yun Shu came to the rescue, but her hidden knowledge of martial arts and medicine was exposed; the prince began to doubt Yun Shu's identity and sent people to investigate, but found out that she was not related to the late queen; the imperial concubine discovered that Yun Shu was investigating the case and set up a trap, and Yun Shu was almost poisoned; during the interrogation, the prince saw the stubbornness and unwillingness in Yun Shu's eyes, and his heart moved, so he intervened ; The relationship between the two turned from hostility to testing, and the prince discovered that Yun Shu was far more intelligent and courageous than the concubine; the border war broke out, and before the prince led the troops, Yun Shu offered military improvements to help him win the war; after the prince's triumphant return, the imperial concubine spread rumors that Yun Shu was colluding with the enemy, and the prince was indifferent on the surface, but in fact he was secretly planning; Yun Shu teamed up with the maid in the cold palace to dig out irrefutable evidence that the imperial concubine was colluding with foreign enemies; the prince The prince witnesses Yun Shu falling into the ice but fakes his death and escapes, only to realize that he has been deeply in love; Yun Shu reappears with a new identity, and the prince exposes the lie of the double in public, admitting that he loves her wholeheartedly; the two join forces to overthrow the power of the imperial concubine, and Yun Shu clears the family's grievances; after the prince ascends the throne, Yun Shu refuses to be a queen living in the shadow, the prince burns the portrait of the late queen, and rebuilds the country with her sincerity
