The Magpie Rises and the Crane Cries

Lu Xianxian is the daughter of the first wife of the head of the Lu family. However, because her mother died young and her stepmother came to power, she was regarded as a thorn in her side. Her father and stepmother repeatedly framed her for the shares in her hands. In order to save herself, she chose to marry Gu Chengze, the head of the Gu family. Marriage, Gu Chengze was originally the illegitimate son of the Gu family who was living outside the country. Because the previous head of the Gu family and his original wife's son died, he was brought back home. What kind of sparks will they create? What is the relationship between the death of Lu Xianxian's mother and the death of the young master of the Gu family?