this is ren yuzhong. he landed a job as a driver when he moved here five years ago. n has received a request. there are around 200 drivers in this area. the system works so the driver closest to the customer is contacted. with more drivers, ren says competition has intensified in recent years. the key to earning more is to hang out close to popular restaurants. they wait until they are contacted. despite luck being a major factor, demand for drivers increases every year. that may be because the number of passenger cars in the city has increased by more than two million in the past five years. summer nights are the most lucrative here on guijie street. some people earn more than restaurant managers. although it's midnight, children are out in the streets. they approach restaurant clientele selling flowers. red roses are the most popular. each rose is sold for $1.50. the wholesale price is one-third that amount. the children are from rural areas. they are out on the streets selling flowers from midnight till dawn. this flower seller is here with her three children. qin