Modern female doctor Lin Jiayan time-travels, soul-transmigrating into Qingyang Princess of the Southern Kingdom sent to the grassland for a political marriage, forced to marry Alatang Gadasu, a grassland warrior of the Erihe tribe. Upon arriving at the grassland, her body is frail, unaccustomed to nomadic life, and the couple harbors mutual estrangement. Relying on modern medical knowledge, Lin Jiayan gradually wins the favor of some people in the tribe, and also gets acquainted with sister-in-law Dulan, nephew Amin, personal maid Lianxin, and others. The overall story has a time-travel and political marriage background, blending grassland power struggles, tribal conflicts, medical healing, and the emotional line of mutual devotion between the male and female leads.