After graduating from university, Lin Dongsheng firmly believes in modern management and cost reduction with increased efficiency. When he returns to his hometown to organize his wedding, he questions the 2,800 yuan "sitting fee" charged by veteran wedding master He Jianye. In front of everyone, he boldly vows to dispense with the wedding master and organize the entire banquet himself using nothing but flowcharts. However, on the big day, torrential rain, a blocked motorcade, seating problems, and interference from relatives and friends pile up one after another. His modern flowcharts completely fail in the face of the complicated customs and personal relationships of rural life. At the critical moment, the experienced old hand steps in to take charge and resolve the crisis. Through this ordeal, the young man finally understands the importance of folk wisdom and experience. He sheds his arrogance and undergoes a profound transformation, learning to respect tradition and growing as a person.