Xu Huanyan lost her mother when she was young and struggled to survive under her stepmother. Always cautious and patient, she finally did something daring at sixteen: she saved Lu Jinzhi, commander of the Changfeng Army, on the northern frontier battlefield. Using her life-saving favor, she boldly married above her station, hoping to escape the fate her stepmother had arranged for her: becoming the concubine of a sixty-year-old man.
She thought that since she and Lu Jinzhi had gotten along well in the army camp, he must feel some tenderness for her, even if their families were worlds apart. But after marrying him, she learned that he had already given his heart to someone else: Han Yuwan, the daughter of her mentor. She had torn apart a pair of lovers!
For the next six years, she did everything she could to make amends for her sin, but in the end, nothing could be undone. Lu Jinzhi hated and resented her, while Han Yuwan tormented and abused her. At last, driven to suicide, she died in the icy river waters on a winter's day.
When she opens her eyes again, she has returned to the year she served as an army doctor on the northern frontier. This time, she still saves Lu Jinzhi, the man who can protect the people of the borderlands from the ravages of war, but demands a fortune from him to sever all ties between them once and for all. Then she turns and throws herself into the arms of the fearsome Prince.
When he learns she is to be married, the usually aloof and self-controlled Commander Lu is consumed with regret! From then on, he does everything he can, all for the chance to make her look back at him once more!
Prince Pingnan: What are you looking at? This prince's beloved wife is not yours to stare at! Be a good nephew. From now on, you should call her Auntie!