Xiao Mingyi returns in triumph after three years of campaigning, but her husband Lu Jinhong secretly takes in the pregnant concubine Su Ruoxue, intending to divorce his wife and swallow her dowry. She petitions for an official title, takes back her wealth, hosts a grand celebration banquet, and teams up with Shen Yanzhi and Princess Wanning to play along and expose the Lu family's conspiracy, divorcing her husband in public. The Lu family is stripped of their official posts and exiled, the sisters clear up their past grievances, and Mingyi finally joins hands with Shen Yanzhi, who has guarded her for many years.