Lin Changan, a declining scholar, accidentally married into the Su family and became the son-in-law that everyone laughed at. Faced with the cold eyes of his family, oppression from foreign enemies, and ridiculous family affairs, he remained neither humble nor overbearing, and gradually won the trust of the Su family and Su Wan'er with his humor and wit. A family business war crisis emerges, and the hostile Zhao family presses harder and harder. Lin Changan leads the crowd to turn danger into safety and counterattack all the way. The three volumes are full of ups and downs, from the son-in-law to the core of the family, the family affection gradually becomes stronger, the friendship is deeper, the marriage is happy, and finally the clouds are cleared, and the humorous life is fully displayed.