影片的背景是在西汉时期，刘弗陵跟随一个商队进入到了荒漠当中，在走投无路之际，云歌出现了，云歌骑着天山雪驼。刘弗陵默默地喜欢上了云歌，两个人相约10年之后在长安相见

10年之后云歌赶到了长安赴刘弗陵与云歌的十年之约，到达长安之后云歌认错人。误将另外一个人认成了刘弗陵，看到他已经娶妻生子，完全忘记了当初的约定，伤心欲绝，想要返回沙漠当中。孟珏出现，孟珏的出现不仅给云歌的生活带来了一丝明亮，同时也不断的安慰云歌。在这种情况下，云歌与孟珏慢慢的走到了一起。经过了解之后发现孟珏在很小的时候就与云歌相识，云歌曾经在小时候送出两个珍珠绣鞋,一个是给了刘弗陵，另一个是给了当时还是小乞丐的孟珏。

The background of the film is during the Western Han Dynasty. Liu Fuling followed a caravan into the desert. Ge is riding a snow camel in Tianshan Mountain. Liu Fuling silently fell in love with Yunge, and the two met in Chang'an after 10 years of dating

10 years later, Yunge rushed to Chang'an to go to Liu Fuling for the ten-year agreement with Yunge, and after arriving in Chang'an, Yunge admitted his mistake people. Mistakenly identified another person as Liu Fuling, saw that he had already married a wife and had children, completely forgot the original agreement, was heartbroken, and wanted to return to the desert. The appearance of Meng Jue not only brings a little light to Yun Ge's life, but also comforts Yun Ge constantly. Under such circumstances, Yun Ge and Meng Jue slowly came together. After getting to know Meng Jue, she found out that she had known Yun Ge when she was very young. Yun Ge once gave two pearl embroidered shoes when she was young, one was for Liu Fuling and the other was for Meng Jue, who was still a beggar at that time.