C74 Comrades and Sentiments Slowly Developed

When Cheng Jianjun, Su Jianguo, and Zhao Cheng returned to Shanghai's railway department, Cheng Jianjun met Zhang Yuan again. This time, Zhang Yuan walked into the designer's office with a stack of documents. As soon as she pushed the door open, Zhang Yuan saw Cheng Jianjun, who had been away for a while.

"You're back?" Zhang Yuan smiled.

"Yes, long time no see" Cheng Jianjun nodded