Dongfang Cheng was originally a maid in the cold palace, but she was actually a loyal minister in the previous dynasty. After her family was treasonous and executed, she was spared from entering the palace. She was secretly summoned by the late emperor because she wrote a ghostwritten document to reveal military and diplomatic strategies. The late emperor secretly ordered her to be the secret imperial advisor to the young prince Xiao Yan, instructing her to lurk in the East Palace as a palace maid and not be exposed. She used the chess game as a metaphor for the court, and the history as a metaphor for the present, integrating power and strategy. Entering the game, the prince turns from cowardly to shrewd and decisive; the concubine Lan Guifei notices the abnormality and poisons her several times. The heroine uses her strength to fight against the general's army and implants the emperor's mind in the prince's heart; after the death of the first emperor, the regent Zhao Huan controls the government, and the prince is like a puppet; the heroine suggests obedience on the surface, secretly cultivates the influence of poor families, and uses the imperial examination to break the monopoly of the family; the regent wants to eliminate his daughter The prince falsely accused her of collaborating with the enemy, and the prince sent her to prison to protect the heroine, but actually transferred her to protect her; in prison, the heroine met the enemy who framed the family and learned that the regent was the mastermind behind it; Beidi took advantage of the civil strife to invade, and the prince's chariot was ambushed in person. The heroine escaped from prison and went to the battlefield, cleverly using fire attacks and alienation tactics to defeat the enemy; after the war, the prince announced the heroine's identity as the emperor's master, the courtiers were in an uproar, and the queen mother was afraid of the heroine. She was able to unite with the clan to put pressure; the heroine advocated cutting down the vassal and weakening the local power, angered the kings, and was seriously injured by an assassin; knowing that her time was short, she compiled what she had learned throughout her life into "Heaven's Policy" and gave it to the prince, and passed away quietly; the prince lost his mentor, worked hard for ten years, and finally became a great hero; while the heroine lived in seclusion in the countryside, set up tents to teach disciples, and educated the people, and her works were passed down and became a must-read for future generations to become emperors.
