A possible concise summary is:
You are a man from the future who pretends to be a fool to escape your parents' pressure to get married. You marry Tang Rong, a beautiful and smart woman who is not his biological daughter of the Tang family. You invent a soliloquy room, mosquito coils and braised pork to make your life more comfortable and profitable. You also want to make Mrs. Liu, Tang Rong's stepmother, regret marrying her daughter to you. Tang Rong is curious about your inventions and wonders if you are really a fool.
Here are the key facts extracted from the text:
- You pretended to be a fool to avoid your parents' pressure to get married and recited a nonsense love song in public .
- The Tang family's mother married her daughter Tang Rong to you because she was not her biological daughter and wanted to make her life miserable .
- You invented a waterwheel, a rain curtain, mosquito coils and braised pork, which impressed Tang Rong and made her doubt your foolishness .
- Tang Rong wanted to give you some money as a gift for returning to the Tang Mansion, but you refused and said you would prepare the gifts yourself .