A pale-faced boy stood on the roof of this tall building with confusion looking at the bustling crowds and bustling streets downstairs. At this time, KM City seemed so prosperous.But at this time, the boy's heart was dead silent, and he was not infected by the bustling night scene at all.This young man is named Xie Baogang. He is twenty-five years old this year. He is an unemployed gangster in the capital. He steals from time to time and likes to play games, read novels, TV, and...prostitution.Not long ago, he was diagnosed with AIDS. For this reason, Xie Baogang did not plan to survive. After playing wildly in major brothels in Beijing for three months, he decided to commit suicide.