Xiao Yunshu, the princess of Anning County, pretended to be crazy and stupid to protect herself, but in fact she was secretly investigating the truth behind the family's annihilation. She and the sickly prince Qin Jingyan met in the intrigues of the palace, testing and exploiting each other. As the investigation deepens, a shocking conspiracy gradually emerges, Xiao Yunshu's true identity is also exposed, and a bloody palace struggle begins.
