Siheyuan: Level 5 Fitter at the Beginning

Li Shengjun's experiences and changes in the courtyard house. He was originally an ordinary resident, but was ostracized because he was alone. However, through his own efforts, he became the youngest level five fitter in the steel rolling mill and started the sign-in system. As time goes by, his life gets better and better, and the neighbors who once excluded him also regret it. Finally, Yi Zhonghai expressed his regret.