She is Gui Wuxin, the daughter of the leader of the Ghost Poison Sect, and the only legitimate princess of the Queen of Tianyu Kingdom. She obeyed her father's orders and went to the Tianyu Palace to become the spy of the Ghost Poison Sect. The situation in the palace was complicated, with constant conspiracies and intrigues. With her ability to use poison, she was able to do it with ease, but unexpectedly she got into trouble with a young man in red...
