The legitimate daughter of the Duke of Zhenguo's household is reborn through fire, returning to the time before her family was falsely accused. In her previous life, she witnessed her father and brothers being framed by five powerful ministers and dying tragically, while she herself died bearing an unjust accusation. In this life, she patiently conceals her intentions and carefully plots her moves, using memories of her previous life to gather evidence of their crimes, bring the treacherous ministers to justice one by one, and shatter their conspiracies. Despite repeated assassination attempts and the emperor's suspicions, she remains in control of the situation. She meets her beloved, Xiao Jinyan, and they move forward side by side. She establishes schools, advances political reform, leads armies to repel enemies, and governs the realm as regent. In the end, she lets go of personal vengeance, embraces the welfare of all people, and joins hands with her beloved to usher in an age of peace and prosperity.