Once the heiress of a wealthy family, An Mingxi's life takes a turn when her family falls into bankruptcy and her father marries the mother of Yao Qianqian, a nouveau riche gold-digger. Grateful and deeply in love with her fiancé, Gu Huai, who once saved her life, she's unaware that he's plotting against her with Yao Qianqian, aiming to seize the inheritance left by her mother. Meanwhile, Gu Moqian, who harbors deep feelings for An Mingxi,压抑his emotions due to her relationship with his nephew. When An Mingxi catches Gu Huai and Yao Qianqian in a compromising position, she's enraged and attempts to revenge by seducing Gu Moqian, but ultimately chickens out at the last moment. Determined to obtain the inheritance, Gu Huai drugs An Mingxi, leading to an unintended intimate encounter between her and Gu Moqian, sparking an ill-fated love affair.
