Siheyuan: From Jilted Machinist to System Big Shot

Xu Jianshe transmigrates into the body of an unlucky young man in a courtyard house. After Jia Dongxu steals Qin Huairu from him, the entire courtyard turns against him. He keeps a low profile for seven years and eventually becomes a Grade 6 fitter, awakening the [Defy-Heaven and Change Fate System] and unlocking abilities such as mechanical control, master-level combat, and an appraiser's eye. When Qin Huairu kneels and begs to get back together, he has blueprints for a German machine tool, won through the System, in hand. He goes on to become the youngest chief engineer at the machinery plant, making the scoundrels kneel and watch him reach the pinnacle of life.