Actor Hu Yiyao, Fushen Hao

Introduction: Sent by the Crown Prince, Kou marries Chancellor Gu Huanzhi to steal secret letters. After the Crown Prince's death, she tries to flee, only to discover Gu has long known her identity and silently shielded her. Through suspicion, betrayal, and life-or-death trials, she also recovers a childhood memory that unexpectedly links to him.