Sweet cake meets the emperor in disguise on the street, and border girl Yun Nuonuo accidentally gets involved in the emperor's chess game. An imperial edict forces her into the palace, and she becomes a pawn that seemingly checks and balances the Yun family. In the deep palace, she encountered many difficulties, but the Empress Dowager secretly escorted her and the Emperor tenderly protected her. She moved from the Yongxiang side palace to Changle Palace, and was even granted special privileges such as horse riding in the palace and special sweet dishes in the imperial dining room.
Undercurrents in the court were raging, Wang Shangshu framed the Yun family, and the accusation of collaborating with the enemy and treason was overwhelming. When Yun Nuonuo was frightened and helpless, Xiao Che took action, exposed the forged evidence, uncovered the mastermind, not only cleared the Yun family, but also promoted the Yun family to a title. This turmoil allowed her to see clearly the emperor's sincerity. From the initial resistance to suspicion, to the confession of her true feelings in the palace late at night, to the deep kiss in the palace to confirm her love, she was finally willing to let go of her obsession with freedom and accompany him wholeheartedly.