My Wardrobe Connects Past and Present, and I Can't Fit All the Gold and Jewels

[Alternate world + transmigration between ancient and modern times + farming + infrastructure building + business] Amateur writer Sang Wan is betrayed by both her best friend and her boyfriend. Even more bizarrely, her rented apartment was definitely locked during the day. That night, after eating takeout, she opened the wardrobe to get her pajamas before taking a shower. But all the clothes inside were jumbled up. She wondered if she had opened the wardrobe the wrong way. She closed the doors and opened them again, but it was still the same. Sang Wan usually hung her clothes in perfect order, keeping tops and trousers separate. It was a habit of hers. Sang Wan: Could this place be haunted? Where am I supposed to go in the middle of the night? My wallet’s emptier than my face! Sang Wan was about to gather the clothes onto the bed and put them away again when she spotted a child in ancient-style clothing asleep inside the wardrobe. As it turned out, the child was the young son of the Marquis of Zhenbei in the Great Xia Dynasty. Sang Wan followed the young heir Lu Huai’an to the Great Xia Dynasty, beginning a fortune-making venture by trading goods between two eras. When famine struck the Great Xia Dynasty, she shipped food over from the modern world. When the Great Xia Dynasty was invaded by enemy nations, she supplied military provisions. She even wiped out the overseas nation of Fusang, becoming a legendary figure in the Great Xia Dynasty. With so many suitors, which one should she choose? [This is a fictional setting. Don’t scrutinize the history; the Great Xia Dynasty is not the historical dynasty.]