In the corner of the downtown area, there is an ancient shop named Xuan Yinxuan. This shop is neither a study nor a store. There is a closed sign on its door almost all year round. However, there are many people who come here with a dark blue business card in their hands to look for its owner...
PS: The beginning of this article is based on a dream of a friend... Friendly reminder: Be careful before entering! ! !
Conception: