Su Qinghan, a princess of the fallen dynasty, spent ten years lying low. She is a master of both medicine and poison, and her martial arts are peerless. On the surface, she is a divine healer who saves lives; in secret, she is the master of the Muyu Pavilion, which controls intelligence across the realm. As she lays a vast trap to prepare for revenge, she unexpectedly crosses paths with He Linyuan, the crown prince of the current dynasty. He investigates an old case from the fallen dynasty while she plots her revenge. As they test each other, they become increasingly entangled.
