Ye Qingwan, the daughter of a scholarly family in the south of the Yangtze River, came to Beijing as a concubine in order to make a living from a poor family. She married Xiao Yichen, the frail and sick second son of the Anyuan Houfu. From a scorned concubine to a confidant sharing weal and woe, the two experienced internal strife in the marquis's house, a rebellion in the court, and a war on the border, and even uncovered the truth behind the massacre of the Ye family twelve years ago. With her wisdom and talents, Ye Qingwan moved from the deep house to the court, redressed her husband's grievances, and eradicated the traitors for the country. Finally, she became the prince's tutor and the protector of the country from a humble concubine. She worked hand in hand with Xiao Yichen to create a peaceful and prosperous age. After she became successful, she retired to the south of the Yangtze River and lived in peace.