Modern special forces military doctor Shang Ruoyi transmigrates into the secondary daughter of the prime minister's estate, forced to take her sister's place in marrying the disabled Prince Dingwang, He Jingheng. Shortly after their grand wedding, Prince Dingwang's estate is framed by treacherous officials, and the entire clan is exiled three thousand li away. She awakens a spiritual spring space, empties the storehouses to protect her family's assets, and saves her husband and clan with her medical skills, martial arts, and wisdom; he bides his time while secretly investigating the truth. From mutual probing to entrusting each other with their lives, the two build greenhouses, boost agriculture and commerce, and gather the hearts of the people in the far northern wasteland, hand in hand creating a prosperous home and uncovering the imperial conspiracy.