In the Hanyuan Palace in the 17th year of Zhenguan, Li Shimin angrily criticized the prince for his lewdness and wanted to abolish the crown prince. When Manchao bowed his head, Li Xiang, the thirteen-year-old emperor's eldest grandson, walked out and looked directly at the throne: Why should I depose my father? Choose between a three-judicial trial and a summary conviction. If you win the bet, you will save your life; if you lose the bet, you will be exiled - after traveling for three days, you will stand on the stage of life and death!