Because of an unexpected encounter, Chen Lei and Wang Guozheng chose to join the army. When they went to the countryside to jump in the queue, they accidentally stumbled into an icy lake. After being shocked in the No. 9 Secret Room, they discovered the Dragon Bone Sword of the Common Clan.
In order to uncover the secrets, everyone went deep into the ancient city of Xixia and the ancient country of Loulan, where they encountered a mysterious ancient virus and the Tibetan Dog, and unexpectedly obtained the Bone Mirror of King Qin.
