Marquis Shouning is an elderly nobleman of eighty-three years old who suffered from apoplexy after a fall. He has been revived but the physician said he may not survive the winter, which is considered remarkable for someone of his age in this era. Despite the prestigious name of his mansion, the Shouning Marquis's Mansion is actually of modest means and couldn't produce a century-old ginseng root needed for his treatment. His eldest son came to plead for help, which is how Prince Yi became involved.