During the Zhenguan period of the Tang Dynasty, Zhang Ming, a modern historian, accidentally traveled to this magnificent era. With his profound historical knowledge, he quickly rose to prominence in the court, but he was also involved in the cruel whirlpool of political struggle. The shocking secrets left over from the Northern Zhou Dynasty, the mysterious ancient prophecies, who is in charge of the future of the Tang Dynasty? Follow Zhang Ming to uncover the many fogs and witness a magnificent legend.