Four years ago, in the 16th year of Yuan Yan, more than 140 members of the Tang family were brutally exterminated. A fire lit up the entire Chang'an and burned away all the comfort. Tang Xiyun, the second lady of the Tang family, suffered all kinds of humiliation alone at night. A blue sword killed all the past. When he walked into her, she had already picked up the sword, her hands were covered with blood, and her clothes were ragged. She pushed him away and was buried in the fire. At that time, she cried and said: "Xuanyuan, it's too late." In the 20th year of Yuan Yan, Nanzhao's envoy came to Yan. He was the prime minister of the country. She became the princess of the country. Dressed in red, he came to Yan to congratulate him. He looked at her with sadness in his eyes, and peach blossoms swept the entire Chang'an. She smiled in the rain of flowers: "Right Prime Minister, remember the name of this princess, Dong De." In the twenty-first year of Yuan Yan, the twins competed for the throne. Everyone knows that there is a counselor in Prince Kuang's palace. When he tried to go there, she opened the bead curtain and smiled brightly: "Right Prime Minister, you and I are already on the chessboard." When old friends meet, they discuss the chess game, the machinations of the world, and the winning and losing. Let's watch.