Crossing Two Worlds, I Became Rich by Reselling

The modern world where the protagonist lives is an ordinary first-tier city in China in the 21st century, with advanced technology and abundant materials. The light industrial daily necessities, food, hardware, and electronic products that are abundant in modern times are extremely low in cost. Ancient porcelain, tea, silk, wild medicinal materials, antique calligraphy and paintings, gold and silver from other worlds are modern luxuries and collectibles, and their value has doubled, forming a perfect two-way closed loop of reselling.