Greetings, Ninth Uncle Novel

"Greetings, Ninth Uncle" by September Flowing Fire tells the story of Cheng Yujin, the elder twin, whose engagement to Marquis Jingyong is revealed to be based on a mistaken identity, as the Marquis intended to marry her younger twin sister. The younger sister and the Marquis share a deep connection and overcome obstacles to become lovers. Cheng Yujin is portrayed as the villain who usurped her sister's destiny and obstructed the main couple. Upon her younger twin sister's rebirth, Cheng Yujin's supposed machinations are exposed, leading to widespread condemnation and her fiancé's indifference. In defiance, Cheng Yujin breaks off the engagement. However, before the Marquis can witness her supposed downfall, he is shocked to see Cheng Yujin marry his uncle, the powerful ninth uncle of the Cheng family, whose true identity is the Crown Prince, Li Chengjing. Cheng Yujin dismisses the Marquis's worth, asserting that his actions have no impact on her.