The Series Tells The Story Of Yun Weishan, A Spy Longing For Freedom, Who Infiltrates The Palace To Complete A Mission. Within The Eerie And Mysterious Palace, She Encounters Love And Friendship, Embarks On A Journey Of Self-discovery, And Finds The Determination To Move Forward. Together With The Rebellious Nobleman Gong Ziyu, They Grow And Mature Through Their Shared Experiences.