The bill at the end of the month was like a reminder, and Zhang San's pocket was cleaner than his face. He is a security guard, and he usually grabs a lot of people on the street. The feather duster of life has almost swept him away. The walls of the rental house seemed to be thinner than his wallet, and the coughs next door could be clearly heard. Just when he was considering whether to add ham to his next instant noodles, the recruitment information popped up on the screen of his mobile phone, like a beam of light in the dark night. Although it was strange, it also illuminated a glimmer of hope.