 Set during the Republican era, the story tells of Du Chunxiao; a smart young girl who uses her strange but unique ability to deduct clues and solve mysteries through the use of tarot cards.However, one day she decides to return to Jiangnan with her friend Huang Mengqing.As the Huang family accepts Chun Xiao as one of their own, Mr. Huang proposes the idea of marriage between his son Mo Ru, and Chun Xiao.