An Mingxi is the daughter of a wealthy family. Because the An family went bankrupt, her father married the nouveau riche Yao Qianqian's mother.
Her fiancé Gu Huai hooked up with Yao Qianqian and plotted against her inheritance.
An Mingxi had an emotional entanglement with Gu Moqian, and eventually developed a forbidden love with Gu Huai.