In a city woven with neon lights, Dao Xun accidentally traveled to the same city in parallel time and space. He lost his original mediocrity and struggled to survive in unfamiliar streets with the memories of his past life. His eyes concealed confusion and unwillingness to return home. Li Rong was an ordinary girl in this time and space, wrapped up in the trivialities of life, carrying the pressure alone, with only gloom in her eyes. An unexpected encounter late at night brought two people in trouble into a collision. The tenacity and transparency inherent in Dao Xun's time travel shattered Li Rong's cowardice; Li Rong's gentleness and enthusiasm illuminated Dao Xun's confusion on his way home. With the glimmer of light as their companion, they redeemed each other in the misplaced time and space. There was no earth-shattering adventure in time travel, only the company of the long stream. In the huge city, they lit up each other's path forward, and also found their own destination and courage.