In Chang'an of the Tang Dynasty, when the imperial power changed, undercurrents of various forces surged. The prince Li Yan, the prime minister's daughter Su Jin, and the general's son Xiao Ce were closely implicated in a sudden official turmoil. In order to seize the throne, Li Yan worked hard at every step, but in the confrontation with Su Jin, he was attracted by her wisdom and tenacity. In order to protect the family, Su Jin circled in the whirlpool of power, and her feelings for Li Yan went from wary to wavering, but she knew that love is fragile in the face of imperial power. Xiao Ce used his military power to enter the situation forcefully and constantly created crises, making the relationship between the three more and more complicated.
They competed in the court and tested in private. Every confrontation was hidden, and every approach was accompanied by risks. The high-intelligence competition caused the situation to change rapidly, and the turbulent emotions repeatedly put them in dilemmas. When the struggle for imperial power intensified, family affection, love, and friendship were threatened one after another, and they had to make cruel choices. In the end, some people were lost at the peak of power, while others sacrificed to protect their loved ones. A past event in Chang'an that began with intrigue and ended in tragedy left endless sighs in the dust of history.