Su Qingyan, the daughter of the guilty minister, was kidnapped into the palace by the powerful Prince Jing Xiao Jue because she looked exactly like the deceased eldest princess Murong Qing. She was named "Qing's side concubine" and ordered to imitate Bai Yueguang's words and deeds day and night. Xiao Jue was sometimes gentle and affectionate towards her (when he was mistaken), and sometimes cold and cruel (when he was awake). He trapped her in a golden cage just to comfort her in the pain of missing his dead wife. Su Qingyan was forced to wear the mask of "Murong Qing" to survive amidst the palace's conspiracy and the male protagonist's morbid obsession. When she gradually glimpses the loneliness under Xiao Jue's indifference, and her heart ripples, she discovers that Bai Yueguang's death has a hidden meaning, and her existence has been a cruel scam from beginning to end...
