She transmigrates into a book. This leans more toward a story with a strong female lead, and the heroine is no saint!
Nangong Yue is a king of a different surname in the original story. Later, unwilling to watch the original ruler’s tyranny make life unbearable for the people, she overthrows the dynasty and takes the throne.
In the original story, Chu Qingyou is a concubine brought into the prince’s manor as part of her cousin’s dowry. She has a title but no real standing. When her cousin suffers a miscarriage during the household power struggles and is left unable to bear children, she uses Chu Qingyou to have an heir, then kills the mother and keeps the child. In the end, her cousin, the princess consort, claims Chu Qingyou has caught an epidemic and sends her away with a wave of her hand to a mass grave.
She is the princess consort’s dowry concubine. Now that she has transmigrated into the story, what place is there for her cousin?