Ta Cang Qi Yun Du Li Hun, Zong Cai Quan Qiu Feng Zhao

Schemed by Mu Man Qing, Mu Han Yan becomes entangled in a one-night stand with Huo Jin Yu, resulting in her pregnancy with twins. While on the run, she tragically loses her mother. Five years later, she returns as the powerful An Na Si to seek revenge on those who wronged her and finds herself reuniting with her eldest son, whom she didn't realize she had lost.
(Source: DramaWiki)