I Went Home to Coast, Rose to Prominence by Chance, and Reached the Top

Wang Qiang, a man born in the 1980s, has achieved nothing. His wife has left him, and he's drowning in online loan debt. He returns to his rural hometown, where he accidentally discovers a cave deep in the mountains with an abnormal magnetic field that lets him travel to another time and space. By buying and selling goods back and forth, he begins his journey to turn his life around.