Engineer Jiang Yanchuan was hospitalized for a work-related injury and discovered that twelve years of savings had been misappropriated by his wife. Facing marital breakdown and familial entanglement, he strictly adhered to the rule of law, rationally collected evidence to defend his rights legally, and protected the underage girl Anan from being hurt by adult disputes. In the workplace, he adhered to his initial technological aspirations, conquered the intelligent production line project, and supported the development of local manufacturing with practical work, interpreting an ordinary person's adherence to morality and sense of responsibility.