Which female novels had the female protagonist surnamed Dugu who transmigrated to become an emperor and left behind a strand of white hair because of the poison?

😋I recommend the book, Tian Zi Jiao, to you. The plot is consistent with the description of the title. The female protagonist's surname was Dugu. She transmigrated as a servant girl and actually possessed the Crown Prince's son. In the end, she became the Emperor openly. Her hair had turned white because of the poison, which was one of the earth-shaking changes in her personality. I hope you like this fairy's recommendation. Muah ~😗