The Lou family in Suzhou was destroyed because his father impeached Prime Minister Yang Guozhong. Daughter Lou Wan was abducted and trafficked to Chang'an. In a dark alley of the West City, young Guo Xin rescued her. He hid her at home, listened to her playing the piano, and read the impeachment transcript left by her father. The following year, Guo Xin won the top prize in martial arts in high school and presented the transcript to Xuanzong after passing the palace examination. The emperor just nodded, but Yang Guozhong learned about it.
Guo Xin was sentenced to death row, but due to his uncle Guo Ziyi's protection, the sentence was changed to be demoted to the Western Regions - never to return to the capital. On the day he left, Lou Wan went to see him off and stood in the crowd, but he didn't see him. She once said, "I'm waiting for you to come back." He also said "I will be back."
Later, the Anshi Rebellion broke out and Chang'an fell. She didn't run away. She stayed in Chang'an and climbed to the tower every New Year's Eve, holding a lantern and looking west. He stayed in the isolated city in the Western Regions. Every winter, facing the desert wind and sand, he thought about the snow in Chang'an.
Decades later, she is gray-haired and still waiting. Some people say that the general died at the border and was buried under the yellow sand with his horse. She didn't believe it. She only climbs the tower every New Year's Eve.
The wind came from the west, and she stretched out her hand. She recalled him saying, "I'll be back."
Intention: You save my life, I will wait for you all my life