Aquatic products practitioner Lin Yu started his business diligently, but encountered boundless demands from his family. He held fast to his bottom line and decisively cut off unreasonable dependency relations, carving out a new career with honesty and practical work. The story advocates refusing dependency and demands, creating happiness with one's own hands, interpreting the meaning of struggle, and the self-reliance of a small family is also a minor contribution to social construction, based on the struggle narrative of ordinary people, promoting the positive values of self-reliance and self-improvement.