I, the Legitimate Prince, Was Sent by the Empress to Get Married?

Li Guanmin, who had been trapped for eight years, thought hard about how to get out of trouble, but he did not expect that the empress issued an imperial edict asking him to go to the grassland to get married. This... What operation? After comparing the original work, it was found that the plot of the story has been changed, and the current female emperor "Zhao Yue" has been penetrated by a "big heroine" with her fist raised high. Li Guanmin smiled, it's true that a wise man's thoughts are worse than a fool's plan! In that case, thank you very much. When I come back that year, I will keep your whole body. But far away in the grassland, the leader of Anyan Kingdom was full of ambitions and strong troops. He was wandering between rebellion and temporary non-rebellion. Suddenly, he heard about the empress' plan to send a prince to come and marry... "Actually, my original name is Liu, and I have the blood of the Han Dynasty. Now that my virtuous son-in-law has been usurped by the demon queen, I must obey the destiny and slay the demon queen to protect my country in the Tang Dynasty!" "Demon Queen, take your life!" Many years later, Li Guanmin looked at the vast territory under his feet, which was illuminated by the sun and the moon, and couldn't help but smile. He once again thanked the "empress" who had been killed by him long ago.