He was an ordinary young man with nothing going for him. Then one night, while out for a run, he accidentally transmigrated back to the State of Qin. By a stroke of luck, he made a fortune in gold. When he returned to the modern world, he obtained a miraculous artifact that let him travel through time and space. From then on, he often used it to return to ancient times. He not only learned peerless martial arts, but also became a wealthy merchant and a renowned inventor, experiencing a completely different life. Thanks to his ability to travel back to the past, he also became the owner of a major auction house in the modern world, with wealth beyond measure.
I've been writing for most of the day, and I haven't even returned to modern times.
It's almost 50 chapters. Can't we go back to modern hydrology?