Princess liu chang sheng from the fu yu kingdom has the label of "husband-killer" attached to her name. as she reaches the age of marriage, she worries about finding a suitable husband. the emperor intends to send her to the da tang kingdom to marry the ruthless and bloodthirsty prince qin li jing, who is known as the "jade-faced demon". with the mission of "killing husbands to save the country", chang sheng and li jing embark on a comical and absurd journey. as they get to know each other, they overcome prejudices, ignore rumors, and bravely pursue love, ultimately discovering the true meaning of love.