After the Spring Festival, the silence of the Ten-Li River Market for more than half a month became bustling again. Here is a relatively concentrated building materials and home furnishing market in Beijing, and also a region where the floating population is relatively concentrated. Unlike the flourishing business atmosphere in the market, a special group of people are busy here. However, they do not dare to hawk loudly but mutter beside the ears of the passers-by: "Need cashing out?"