In the woodshed, Gu Lingyi witnesses her second wife, Su Manniang, verbally tormenting her and learns of the family's hidden troubles, as well as a mystery surrounding her eldest grandson's parentage. Deeply shaken, she reaches the brink of despair. At that moment, her discarded daughter-in-law, Shen Shuyu, carries the old madam away through the rain. Calling her mother with heartfelt sincerity, Shen Shuyu moves Gu Lingyi to vow that she will protect her in the next life. Reborn and awakened, Gu Lingyi sees clearly and refuses to be deceived by appearances any longer. She resolves to uncover the concealed truth, safeguard the century-old foundations of the Duke's Mansion, and give Shen Shuyu the respect she deserves. As Su Manniang advances with one calculated scheme after another, how will Gu Lingyi use her wisdom and vision to turn the tables and restore order to the family? How will this struggle over trust and inheritance end?