As the eldest daughter of Chengen Gongfu, the most famous family in the capital, Gu Yuan's life was clearly arranged. He studied piano, chess, calligraphy and painting, practiced the style of aristocratic families, and befriended noble girls, just to marry into a high family one day and add another glory to the family. Everyone said that Gu Yuan was a model of a noble lady in the capital, gentle, virtuous, dignified and elegant. No one knows that in the dead of night, this model will put on a neat men's clothing, and his slender jade fingers will not play the strings, but the abacus. She is the "Mr. Yun" behind the new mysterious business name "Si Hai Tong" in Beijing, whose name is only heard but not his person. In front of others, her grandmother taught her: "It is a virtue for a woman not to have talent, and the right way is to support her husband and teach her children." Gu Yuan lowered her eyes, turned around and calculated the turnover of her rouge shop last month, and opened three more branches. Behind the scenes, the noble ladies drank tea and admired flowers with her, and discussed which young master was the most handsome. Gu Yuan listened with a smile, but what he was thinking about was how to recruit two more capable shopkeepers from the properties of those young masters. She originally thought that this two-sided road would continue until she accumulated enough capital to have a complete showdown with her family's marriage arrangement. Who would have thought that her biggest business rival, the rumored Marquis of Jingbei who was decisive in killing and never flirting with women, would actually be her future "husband-in-law". During a confrontation between chambers of commerce, Marquis Jingbei blocked her in a dark alley, his eyes as sharp as an eagle: "Mr. Yun's business methods are very similar to those of my future wife." Gu Yuan: "..." Help! The vest seems to be falling off! **Tags:** House fighting, business, strong woman, sweet pet, dual identity