Earthly Repair Manual

My name is Yu Jiangqiu. I originally thought that I was just going to study abroad in a beautiful way. After returning to China, I would look for a good job and a beautiful wife. This life would pass like this. But why does the world seem to be different from what I thought? Why does this world look more and more like a grass-roots team? I just came here to get a student status and return to China to become a gangster! Why are you following them to save the world?