Lu Ping'an ran around day and night, spearheaded the design and pushed forward the engineering, made the construction site famous, and the two agreed to split the profits equally. At the end of the year, Lu Ping'an's child urgently needed surgery, but Sun Yihang only gave him ninety thousand. To save his child, he could only endure in silence. The disheartened Lu Ping'an decided to start a business alone, and the old bosses who had cooperated in the past learned the truth, one after another coming to hand him engineering orders. After Lu Ping'an set up on his own and undertook a large number of projects, Sun Yihang grew jealous, snatching projects on one side while maliciously creating obstacles on the other. In the end, a major accident occurred at the construction site where nobody controlled the quality, and he regretted it deeply facing huge compensation, while Lu Ping'an steadily grew rich relying on his own ability.