Gu Qingci, once a modern female detective, is on the brink of death during an undercover mission. When she wakes, she discovers that she has transmigrated and become Gu Qingci, the legitimate daughter of the Marquis of Zhenguo's residence in the Great Yan dynasty. On a snowy day, she meets Xiao Jingheng, who drapes a white fox-fur cloak over her shoulders, and their fateful bond begins.
