When the last snow fell in 1999, Jiang Xiao's confession was rejected in advance by his childhood sweetheart Chen Mo. She ran into the wind and snow clutching the unsent letter, but received a mobile phone from the future at the phone booth - time suddenly jumped to 2025. The boy who once told her that "friends last longer" is now Chen Zhe, a convenience store night clerk with frost-stained temples. He lives alone in an era where suspended cars pass by silently and relationships are all driven by algorithms.
Jiang Xiao didn't know that Chen Mo came from another timeline - where they fell in love and she died in a car accident in 2006 while rushing to him. In exchange for a slim chance of hope, Chen Mo became a "time and space anchor", anchored in 2025. The price was to erase the history of their love and watch forever.
Now, Jiang Xiao's unexpected arrival has shattered the peace. She is not only a "time jumper", but also a "backup of consciousness" who was saved from the moment of death. Her existence itself is a paradox.
Darker shadows follow. An organization called the "Time Sequence Stability Bureau" follows them everywhere, and the cold female executive Lin Lan monitors them at all times and determines that their emotional connection is a "high-risk variable" that may trigger the collapse of time and space. In this "efficient" society where shopping malls have been reduced to training courses, all consumption is in the cloud, and the elderly are trapped in the digital divide, Jiang Xiao uses the "slowness" and "truth" from 1999 to clumsily help the elderly forgotten by the times and try to take root. In the process of protecting her, Chen Mo was engaged in a painful struggle with the dead lover in his memory and the living but fragile woman in front of him.
