A Taoist priest who has stood at the pinnacle of the immortal world and understands the essence of "the involution of heaven" traveled to the modern city and wanted to be a salted fish. However, due to the thousand-year chess game between the two planes and the fetters around him, he was forced to climb back to the top step by step. In the end, he broke the chess game of heaven and opened up a "free road" for the two civilizations.