They are all a group of little people who left their hometowns and went to Shenzhen alone for their own dreams. In this materialistic city, in this city full of temptations, how can people like them, without a very good social background or a high degree of diploma, gain a foothold in this city? After being corrupted several times in this city, he was finally driven by the remaining trace of conscience and did not go down the abyss of sin...