The protagonist is eighteen and works in the modern world, going to work every day and often getting bullied by his coworkers. There is little he can do, since he is just an ordinary factory assembly-line worker. One day, after being badly bullied and targeted by his colleagues yet again, he gets drunk after work and accidentally bangs his head against the old doorframe in his rented room, leaving him bleeding heavily. His blood seeps into the frame, and suddenly a vortex of light appears before him and sucks him inside. He goes straight from 2025 to 2150. Almost no one is on the streets, there are no overhead power lines like before, and the roads are no longer smooth. At last, he meets someone and learns that he has arrived in 2150. In this era, mobile phones have disappeared, replaced by quantum entanglement technology and the like. The protagonist has no choice but to work to support himself, and he also buys all sorts of novel gadgets. Later, the Temporal Bureau discovers him. They say that crossing through time without a permit could cause temporal chaos and make order difficult to maintain, so they intend to forcibly send him back to 2015. But a temporal disturbance keeps him from returning to 2015. Instead, he arrives in a fictional dynasty called Da Ruan, which is in the midst of a famine. The many items Tong Xin bought before being forcibly transported come with him, and he can still buy goods from 2150 in the Quantum Mall. Eventually, he can even travel back and forth between 2015, 2150, and the Da Ruan Dynasty.
