During the night shift in the old library, Lin Yan found a scrap book that he could write on his own: there was insufficient lamp oil, and he was allowed to confiscate the memory of the unknown person. That night, the memory of the entire street was taken away, leaving only the sound of lights. Three years after his sister disappeared, he looked through the city's roster and finally saw his name on the side page of a dead civilization's debt book. Every dead civilization is collecting debts. And he is the only recorder. Before he could remember someone else's ending, he had to pay off his own.
