The romantic emperor Huizong of the Song Dynasty met Meng Juan, a clan sister of the Meng family, the deposed empress of Zhe Zong, by chance. Under the alliance between Song Weizong and Meng Juan, they committed themselves to each other and gave birth to a pair of twin daughters. The first empress of Zhezong, the Liu family, hated Meng Juan and wanted to send someone to get rid of Meng Juan and her daughter. Meng Juan's mother and daughter were chased by people sent by Queen Liu during their escape. Meng Juan unfortunately fell off a cliff and died while holding a girl in her arms, but the girl in her arms was rescued by a female fox. When the girl was 3 years old, she was brought back to the remote mountains by a tourist from outside the mountain to raise her as an adult and named her Fox Tianlan. In order to know the mystery of her life experience and find her biological parents, Tian Lan disguised herself as a man and traveled around the world. She met Xu Mingxian, the young owner of the village, and Wang Tianbao, the righteous hero, and met Ruyu, a singer in Yuchun Tower. Ruyu is Fang La's unmarried daughter-in-law, and she wants to avenge Song Huizong for the murder of her fiancé. When the Jin Kingdom captured Bianjing and robbed Song Huizong and all the royal personnel and headed north, several young people had a fierce conflict over whether to rescue or pursue them. The story is based on the background of family search and revenge, and tells the love-hate relationship between several male and female protagonists; the painful choices when facing love, family affection, and friendship; the hesitation between national hatred and family hatred, hatred and forgiveness. The whole story is full of suspense, confusing, ups and downs, and is full of legend, which is fascinating to watch.