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女主李韫善前世是铁血将女，倾尽家族之力辅佐恋人萧乾登基，却在封后大典被萧乾赐毒酒含恨而终。重生后，她提剑闯东宫，扶持看似温润、实则腹黑的太子周祯上位，以摄政王身份搅动朝堂，向背叛者复仇，改写命运。
n her previous life, Li Yun Shan put on a military uniform and fought for many years for Xiao Qian to help him ascend the throne. She thought that everything would go smoothly after Xiao Qian gained it, and she would become his empress. However, at the ceremony of enthroning the queen, Xiao Qian hands her a cup of Hehuan wine with hidden poison and chooses another woman to become his spouse. Li Yun Shan died on that day, but fate allowed her to be reborn again. The first thing that Yun Shan decides to do, after coming back to life, is to rush to the East Palace with a sword, and this time, change the fate by supporting the crown prince Zhou Zhen and helping him to become the new ruler.
