Lin Fan, an ordinary young man from a small town, became the son-in-law of a wealthy family by chance. He was regarded as the "brother-in-law" by everyone, but his life fell into a quagmire from then on. The contempt of his family, the ridicule of the outside world, and the indifference of his wife all made him feel depressed. Faced with countless ridicules and humiliations, Lin Fan once wanted to give up, but with the appearance of the mysterious master and the secret support of the secret family forces, he gradually discovered the huge potential hidden in himself.
Lin Fan began to keep a low profile, secretly accumulating strength, gradually breaking the rules and meeting challenges one after another. In the confrontation between business, family struggles, and dark forces, he showed extraordinary wisdom and courage, and counterattacked step by step. The son-in-law who originally seemed to have no future eventually became a formidable top powerhouse. How will he choose when faced with people who once disdained him? What kind of shocking secret is hidden behind this transformation from son-in-law to legend?