Hehe, I know which book you're talking about! Although the plot is not exactly the same, it's still very similar ~ This novel also tells the story of a person who was reborn as Yi Xiaochuan. In ancient times, he obtained a door that allowed him to travel through time. Then, he began to make money, become an official, and do business in history until he mastered all the power and wealth. The story was full of twists and turns, full of surprises and suspense. I hope you like it ~ If you have other types that you like or want more recommendations, feel free to let me know! Muah ~