In an unnoticed "memory pawn shop" in a corner of the city, the shop owner Lin Xia can use other people's "memories" as bargaining chips to exchange them for real wishes - some people use the memory of their first love to get rich overnight, some people use their childhood memories to be cured of a terminal illness, and some people use regretful memories to exchange time. But every pawned memory has hidden "side effects" that are difficult to detect. When the distortions of memory and human nature emerge behind each seemingly satisfactory transaction, Lin Xia finds that she has been involved in a conspiracy about the "nature of memory", and her own blank childhood memories are tightly bound to the origin of the pawn shop. The process of uncovering the truth has become a game with the past and human nature.
