When the Han fell, the worlds split apart, running parallel.
On one side lies a modern city of steel and concrete; on the other, the decaying Great Yong dynasty, with the apocalypse fast approaching.
Chen Yanyu, a food delivery rider, is hit by a car while making a delivery on a rainy night and wakes in another body, as a good-for-nothing clerk at a county office whom everyone mocks. Drawing on the street smarts he gained from struggling to survive, he rises step by step through a rotten bureaucracy, only to witness firsthand how tyranny is worse than tigers and the people are driven from their homes. He decides that saving the people matters more than serving the emperor. Taking up his sword, he sets out to carve a new world from the chaos.
Meanwhile, Chen Heng, a bookish young man held to his father’s strict rules and trapped by the chains of “bringing glory to the family,” opens his eyes in the modern world and becomes a delivery rider, braving wind and rain. At first, he sees the job as a source of unbearable shame and behaves timidly throughout. But after Chen Yanyu advises him in a dream, he breaks free of Confucian constraints and lets the warmth and cheerfulness within him shine through. The way he embraces life warms countless people. With his refined scholarly bearing, he becomes a wildly popular feel-good influencer, winning legions of fans through his livestreams.
The two men who have exchanged lives meet in their dreams every night. They are each other’s only confidants, and they find mutual redemption across time and space, becoming the brightest lights in each other’s worlds.