At the Beginning, I Was a Traitor on an Alien Planet

The background of the book is a time node similar to modern times The area is a virtual continent The protagonist's ancestors were saved by a Taoist priest, so every generation would send their eldest son and grandson to Taoist temples to practice. Until modern times, it was replaced by summer and winter vacations to practice. Later, by chance, the protagonist discovers that he has gone to the galaxy where Star Wars is located, and can jump back and forth. . . So, I resold whatever was in short supply there, cigarettes, melon seeds, eight-treasure porridge, beer, drinks, and mineral water. What to pay with? We call that useless metal on the walls of your home gold. The battery technology of your spaceship is very good. I exchanged it for 10 bottles of mineral water, and the investment of 100 billion from high school students was received. Major mobile phone and car companies begged me to transfer the technology.