In the turbulent era of the Republic of China, an ordinary murder of a dancing girl unexpectedly stirred up the dark forces in Nancheng. Gu Manqing has been dependent on her sister who was a dancer since she was a child, but she never thought that on her big day, she would witness Lu Yichuan murder her sister. After Gu Manqing failed to assassinate Lu Yichuan on their wedding night, she jumped out of the window and escaped, and then started a new life incognito. I thought that Gu Manqing could live a happy life by marrying into a wealthy family, but unexpectedly, this was Gu Manqing's first step in revenge, becoming a stepmother in Lu Yichuan's family. Gu Man, who risked the rest of his life at all costs, launched a fatal revenge against Lu Yichuan, but when he was about to kill his enemy, he discovered that there was a bigger conspiracy hidden behind it...