Shen Yanqiu, a graduate student in the history department, traveled to Beijing in the 17th year of Chongzhen's reign, which coincided with the end of the dynasty. He relied on historical knowledge to survive, but he was involved in the whirlpool of Jin Yiwei's investigation and the disarmament of the Beijing camp's armaments. Life and death in the alley, and the experience of the bookstore owner made him struggle between self-preservation and recording the truth - will this trip to Beijing witness the destruction, or can it rewrite something?
