For three years in the Pei family, Shen Zhaoyue used her dowry to maintain the family's dignity, yet remained childless. On the night of their wedding, the ancestral Zhaowang Mirror unexpectedly revealed her doomed fate: her husband returned after placing high in the imperial examinations accompanied by a pregnant concubine, and she was stripped of her keys, locked in a cold courtyard, and died full of grievance. Opening her eyes once more, everything returned to the past. On the surface she is submissive, but secretly she locks down her dowry and prepares a divorce letter. Before long, the pregnant concubine Bai Wan indeed steps through the door, the mother-in-law seizes power, and her husband is heartless—everything seen in the mirror comes true one by one. Holding the mirror, Shen Zhaoyue strikes back step by step, only to discover that behind Bai Wan lies a shocking fox calamity reaching straight to the imperial court—the counterattack she thought was hers was merely a single move within the game.