Three years ago, Shen Mo, the master of the Yinlong Palace, repaid the Ye family's kindness by marrying the Ye family as a son-in-law. During the three years, he did laundry, cooking, and served tea and water, but suffered cold looks and ridicule. He was called "the most useless son-in-law" by the entire Haicheng. Until his wife Ye Qingxue's company was in dire straits and all forces joined forces to suppress it, the hidden dragon war god who once made the underground world fearful finally slowly opened his eyes. The Dragon King returns to his throne and the storm rises again.