Lin Yuan, a young history researcher in 2024, accidentally triggered a "time rift" during an archaeological exploration. His soul traveled to Peiping in the autumn of 1948 and possessed the body of an unemployed young man who died of illness in No. 50, Datoutiao Hutong, Beixinqiao, Dongcheng District. Not only did he have to face life in a besieged city where material was extremely scarce, but he also had to make a choice in the torrent of history: Should he rely on the knowledge of future generations to "catch on" to save his life, or should he do his part for this ancient city that was about to be reborn from the ashes?
