Siheyuan: Starting from Promotion to Mechanical Engineer

(Siheyuan+Chronology+Farming+Qin Huairu+Silly Zhu+Banggan+Xu Damao+Lou Xiao'e+Jia Zhangshi) Li Jianguo traveled through the world of "Love Siheyuan", took over his father's job, became a fitter apprentice, and became an ordinary resident of the Siheyuan. At first, I was too lazy to care about the beasts. However, after Jia Xudong died, Li Jianguo, as a neighbor, did not contribute any effort and did not have any money. He was often absent from relief meetings and kept nothing, so he was ostracized and slandered by the Jia family. Li Jianguo didn't give up at all, and directly attacked the beasts in the courtyard, so that all the beasts did not dare to provoke him. Then the system space came online, and he could travel to all the worlds and dynasties, bring all kinds of treasures, and directly became a mechanical engineer, reaching the pinnacle of his life. But everyone in the courtyard was not calm anymore and wanted to take advantage. Qin Huairu wanted to send it to her door, but she refused! BangGeng wants to steal something? **Go for it! No matter who it is, whoever dares to mess with me will be destroyed!