In the eleventh year of Daye, Emperor Yang of the Sui Dynasty was besieged at Yanmen Pass, and the world was in turmoil.
Li Shimin persuaded his father in the secret room: "Dad, if you don't take action, our Li family will be beaten like mahjong tiles by Yang Guang!"
Li Yuan frowned and said: "Son, rebellion is a technical job and the risk is high."
Unexpectedly, that night, Pei Ji, deputy eunuch of Jinyang Palace, sent a secret report: "Your Majesty has issued a decree to sacrifice your head to the flag!"
Li Yuan snapped at the crime and stood up: "Young man Yang Guang, you are going too far!"
At dawn the next day, the gates of Taiyuan City were opened wide, and Li Yuan led 70,000 elite soldiers to swear: "I am going to Chang'an to demand justice!"
Three hundred years of turmoil in the Tang Dynasty actually began with a gambling game in which people were forced to overturn the table.