With "Twin Bloodline" and "Dynasty Guardian" as the core, it revolves around the fate of the Holy Family sisters, integrating palace intrigues, rivers and lakes fighting and suspense conspiracy. The main line is as follows:
The sisters of the Holy Family have been coveted by the Dark Palace of the Holy Family since childhood because they have "twin bloodlines" - the Dark Palace colludes with the remnants of the previous dynasty in an attempt to use the twin bloodlines to activate the "Core of Destiny" and restore the previous dynasty. His younger sister Sheng Shiyu was brutally murdered by the Dark Palace. As the leader of Tiansheng Sect, Sheng Shiyun avenged his sister and protected his remaining sisters. He replaced Shiyu in the palace and became the queen, and met the emperor Zhao Zhanxi who seemed indifferent but actually cared about the world.
After entering the palace, Shiyun concealed his identity to test the emperor while secretly investigating the conspiracy of the Dark Palace, gradually uncovering shocking secrets such as "Cinnabar Gu is the shackles of the royal bloodline", "The core of destiny is related to the fate of the dynasty" and "The chief priest of the Holy Family's Dark Palace is actually the descendant of the deposed prince of the previous dynasty". In the process, she and Zhao Zhanxi went from mutual suspicion to mutual trust, and shared life and death. They joined hands in multiple rounds of deadly battles with the dead men of the Dark Palace in the secret room of Wuyin Mountain. With the resonance of their twin bloodlines and the help of their connections in the world, they finally defeated the chief priest and protected the core of destiny.
After taking revenge, Shiyun did not dwell on the past, but joined forces with Zhao Zhanxi to promote changes in the palace: eliminate corrupt officials, lift the sea ban, rectify water transportation, and set up the "Nianyuzhai" charity organization in the name of his sister Shiyu to allow kindness and justice to continue. The emperor took advantage of this turmoil to consolidate his imperial power, and the country gradually moved towards prosperity and stability.
