Nian, a girl from the Ji tribe, meets a boy named Xiao Zifeng in her hometown of Susui, and they eventually fall in love. However, their relationship faces unexpected challenges as their tribe falls, 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, begins to suspect his existence. Despite his doubts, he feels a strange sense of familiarity towards her, while Xiao Man begins to discover secrets about him that he never expected.