Reincarnated in the ancient world, he obtained the daily sign-in system and hoarded the supreme magic weapon, but he himself was a mortal body without any cultivation. Encountering Yunxiao who was seeking refuge by chance, he took the initiative to take him in, and taught him the opportunity to gain enlightenment in the chess game of Dao Dao and the method of breaking the list of gods. When the catastrophe of Biyou Palace was approaching, Lu Yun sent the golden rooster to crow as a warning, and Tongtian abandoned the sword formation and retreated with his niece, so that he could escape the catastrophe.