Reasonableness is the first thing an underground worker should consider, as Comrade "Zhu Lin" instructed and Cheng Qianfan always kept in mind.,He clutched his ticket pouch tightly, his gaze piercing as he scrutinized every passenger up and down. "Tickets for those boarding!" he shouted from his perch.,He kept an eye on Cheng Qianfan's back as he walked in, making sure there was nothing unusual, while raising his voice and shouting at a passenger with a long face, "I bought a four-dollar silver ticket. At most, I can ride to Father Jinshen!"。