Zhang Chi, a lab technician at the Top-level Grinding Materials Co., Ltd., has a happy family. Her husband, Zheng Yiming, is very talented and highly valued in the company, and their daughter, Xuanxuan, is smart, obedient, and considerate. Zhang Chi's mother, Mou Guiying, has had a lifetime of emotional discord with her husband, Zhang Bingqian. Zhang Chi's younger sister, Zhang Shuo, originally had a very loving husband, Ning Jie, but due to Zhang Shuo's chronic alcoholism and repeated failure to reform, Ning Jie has become quite disappointed in her. Zhang Chi's colleague, Yang Xiuzhen, has a paralyzed husband, and the entire family relies solely on her monthly salary of more than 400 yuan to make ends meet. Lab technician Liu Ting resents Zhang Chi for stealing all the limelight and harbors jealousy towards her.