Legend has it that there is an antique shop at the end of Yanyu Hutong. Its owner has ancient blood and is a descendant of Nuwa and Fuxi. The owner of that shop always wears a white robe all year round, with a jade pendant made of mutton-fat white jade around his waist, and no other decorations. As for what kind of business that store does, some people say it is detective, some say it sells groceries, and some people say it interprets dreams. Everyone has their own opinions. However, in fact, which store does the most business is the business of various monsters. Of course, whether the business can be successful or not depends on the mood of the store owner.