Su Chen traveled into the Qinman Siheyuan in the 1960s and became the last single seedling in Maoshan. The monthly salary of a second-level fitter is 35.5 Yuan, and the life is quite comfortable. As soon as he left the factory, someone gave him two white-flour steamed buns and ran away - the child of a co-worker was taken to the cemetery and burned for three days with antibiotics to no avail. He walked back with the bun in hand. He couldn't do this job without taking it.