Before the imperial concubine selection, Shen Zhaoyue was unexpectedly diagnosed with a pulse of pregnancy. To save her life, she and her family decided to conceal the truth, but her stepsister Shen Zhaoxue publicly exposed her loss of purity and pregnancy at the palace banquet, even bringing forth human and physical evidence to put her to death. Just as everyone was waiting for the emperor to punish her for the crime of deceiving the ruler, Nangong Chen publicly confessed that the person who had illicitly conceived a child with her at Qing'an Temple was none other than himself. As the truth unfolded, a conspiracy targeting the royal bloodline, imperial brothers, and a years-old prophecy gradually surfaced.