Although Madam Du was a legitimate daughter, the Duke Pingxi Mansion had fallen into decay since her grandfather's generation, and she had not received proper guidance. Things were slightly better when she had the Old Lady Marquis to take care of her, but after the Old Lady Marquis passed away, she turned the inner court into a complete mess, not only trying every means to help her natal family but also wanting her eldest son, Min Luozhan, to marry her own niece, Du Sihui, as his wife.
That would have been bad enough, but after Min Luozhan refused and then asked to marry the Imperial Older Sister, Madam Du actually harbored hatred against the Imperial Older Sister. She made things difficult for her everywhere and even tried her best to have Min Luozhan take Du Sihui as his formal wife. Now, she even indulged Du Sihui in plotting against the Imperial Older Sister and her children.
