A Nian, a girl from the Ji tribe, meets a boy named Xiao Zifeng in her hometown of Susui, and they fall in love over time. However, their relationship faces unexpected challenges with the fall of her tribe, causing them to lose their memories of each other. A Nian adopts the name Xiao Man and enters the general’s mansion, where Xiao Zifeng, still without his memories, grows suspicious of her presence. Despite his doubts, he feels a strange sense of familiarity toward her, while Xiao Man begins to uncover secrets about him she never expected.