Cheng Guifang, who has worked in the waterproofing industry for fifteen years, has saved large orders and taken care of countless messes for her bosses. During a project acceptance inspection, she refused to sign for a project that cut corners and cut corners, but her salary was deducted and she was kicked out in public. With two female workers, she started over with an old van and a small order of 4,000 yuan. The old company relied on low prices to grab orders, and it still looked good on the surface; until a series of heavy rains fell, the materials, processes and conscience that had been omitted were returned from under the roof layer by layer. This time, Cheng Guifang will not clean up the aftermath for anyone. She has to rely on skills, evidence and reputation to win back her lost dignity and business bit by bit.