The Master of Time and Space, Earn three small goals with blood at the beginning chapter 168

Jiang Hao, an ordinary person, obtained the future trading platform. Things that are worthless in this world can be priceless when sold to people in the future world through the future trading platform! And something worthless in the future world can subvert the entire world of physics and technology when brought to this world! Jiang Hao travels between the present world and the future world, becoming a time and space master! At the beginning, we set a goal: to fool Mr. Bart and earn him 300 million meters of gold!