My Museum Connects Past and Present; the Fiancé I Spoiled with Stockpiled Goods Becomes Emperor

[Able to communicate across time + female lead transmigrates + male supporting character travels from ancient times to the present + true and fake heiresses + building a fortune] Liu Nan, director of a museum, accidentally painted a portal through time with her brush. To her surprise, it allowed her to communicate across the ages, and she met an ancient general she had spent a long time researching. The general was defending the frontier, facing twenty thousand enemy soldiers with only two hundred men. But torrential rain struck, leaving the soldiers and civilians short of food and water and infected with plague. Liu Nan supplied the general with food and medicine, helping him... What? The divine brush in her hand can paint anything she wants into existence? Liu Nan swept her brush across the page, providing delicacies, daily necessities, and all kinds of modern products! The general presented antiques to the goddess in his heart. Liu Nan's museum became the largest in the country. One day, the general suddenly realized that the goddess in his heart was once his fiancee. "Your Highness, I won't let you leave again!"