After military doctor He Ziran dies saving people, she time-travels and becomes the newlywed wife of Protector of the Country Mo Jiuye. On their wedding night, her husband is punished by the emperor, and the Mo family is promptly ransacked and exiled. Along the way, she relies on her superb medical skills to defuse dangers and rally people's hearts, and also finds the brother rumored to have died in battle. The husband and wife join hands to weed out the Third Prince's conspiracy to manipulate the Mo family disciples with gu-poison, find all the Mo brothers, expose the true face of the villains, and clear the family's grievances. After the storm settles, the two live in stable devotion, and the Mo family enjoys domestic harmony.