Shen Wan returns to her hometown to visit relatives with her husband, Xie Changqing. Her elder sister, Shen Rou, publicly accuses her brother-in-law of violating her, and their parents coerce Shen Wan into yielding her position as the legitimate wife and forcing her to sign an agreement. Shen Wan knows clearly in her heart that Xie Changqing is a powerful eunuch holding heavy authority in the imperial court, and what her sister said is purely nonsense. It turns out that her family mistakenly regarded Xie Changqing as a wealthy merchant and intended to have Shen Rou replace Shen Wan to go to the capital and enjoy luxury. The parents even collude with local officials, trying to use a lawsuit to force Xie Changqing to compromise. Xie Changqing has long known about this conspiracy and made secret arrangements. In the official hall, the truth is gradually uncovered, and behind this lies the entanglement of struggles involving old factions in the imperial court.