During the reign of Emperor Renzong of the Northern Song Dynasty, there was a water monster on the banks of the Bianhe River. The Kaifeng government was instructed to send its saber-bearing guard Zhan Zhao to pursue the clues. They deduce that the beast is made of a machine and, with Deng's introduction, they go to the Qiankun Palace, the residence of the most famous machine master, Sheng Luban
The two clans battle for dominance of the Hanging Bones. Qian Xun, the leader of the Dragon Clan, signed the "Xuan Bone Book" for the Bao clan to end the thousand-year fight with the Spirit Clan. However, the two races have been in peace for hundreds of years, but they have been fighting again.
