Xue Zhiqing travels thousands of miles to find her fiancé, Rong Jing, who she believes died in battle. Unexpectedly, she discovers that he deliberately faked his death and went into hiding to stay with his mistress, Su Xiang. Heartbroken, she decisively breaks off their engagement and marries Prince Regent Pei Li, who has silently protected her for years. Three years later, Rong Jing returns to the capital with Su Xiang in grand fashion, intending to force the heavily pregnant Xue Zhiqing to become his concubine. Pei Li fiercely protects his wife, gathers all the evidence of their crimes, and exposes Rong Jing's deception and Su Xiang's heinous misdeeds before the imperial court at a state banquet. The villains, despite exhausting every scheme, ultimately lose their family and everything they possess.