A 21st-century military doctor, Song Jin, time-travels to become the vicious original wife of the chief councillor. Right at the start, she is accused of selling children and is about to be expelled. On the refugee trail, she activates a spiritual spring space, and relying on medical skills and supplies, leads the entire village to escape rat plagues, epidemics, and wolf packs, while healing the disabled Xiao Yanzhi. Four stepchildren go from hostility to reliance, and Xiao Yanzhi also shifts from cold indifference to true devotion. Along the way, they encounter the original female protagonist and the future emperor. After arriving at the settlement, Xiao Yanzhi refuses to divorce and confesses his love. In the end, Song Jin chooses a "family of six" to enter the capital, starting a new life.