Shen Yuanqing is the last person to survive among the hundreds of Gu children in Qianmias Valley. She has poisonous blood and controls a group of poisons. She can not only take people's lives, but also save people from desperate situations.
After acknowledging her relationship and returning to the capital, she was granted a marriage and tied to her legitimate prince Xie Chengyan. One is investigating an old case about his life experience, and the other is in danger to fight for his heir; they test each other, use each other, and also give their sincerity to each other in life and death and choices.
Old cases in the palace, kings fighting for their heirs, aristocratic families strife, and four kingdoms clashing. There is no gratuitous loyalty here, nor is there any ambition to give up easily. Everyone is making choices for power, kin, and loved ones.
They all have sharp blades in their hands, and they all have people who must guard them.
