Ancestral wood art craftsman Zhou Jingyu is proficient in ancient mortise and tenon techniques, and falls in love with cultural affairs officer Yufen, but faces all kinds of humiliation and exclusion from his snobbish parents-in-law and rival Zhao Mingyuan. When an ancient century-old opera stage runs into danger, he steps in to repair it and becomes famous in one battle. Zhao Mingyuan repeatedly spreads rumors, frames him, and seizes projects. After an engineering accident occurs with no one to help, Zhou Jingyu puts aside old grievances to step in and remedy the situation, finally winning everyone's approval, marrying Yufen, and passing on traditional wood art.