Above the Daliang court, the 18-year-old eldest princess Xiao Yueyin smashed the precious jade Ruyi presented by Prime Minister Zhao Chongyuan to pieces in front of all the civil and military officials. "I don't like people playing tricks in front of me." The whole court was in an uproar, but no one dared to say anything. After retiring from the court, the emperor summoned her, and on the surface she reprimanded but in reality warned: "Your temper will bring you trouble sooner or later." That night, Xiao Yueyin was assassinated, and her personal maid died trying to save her. The emperor ordered the secret guard battalion to send more manpower, and the commander of the secret guard battalion, Shadow, sent the strongest secret guard Yun Gui to protect the eldest princess.
