You're a Scrap Collector, and You Calculated Every Digit of Pi?

Qin Xuan transmigrates to a parallel world, where the System grants him the ability to calculate pi to its final digit, on the condition that he collects one hundred million bottles. To do so, Qin Xuan opens a recycling depot. At the same time, the Great Xia is facing a technological blockade by several nations led by Eagleland, all intent on stifling its development. To help Great Xia break through the blockade, Qin Xuan deliberately spreads advanced technological formulas far and wide, drawing the attention of the country’s top officials. Once he gets his wish and enters the national research base, Qin Xuan lets his imagination run wild. He transforms all kinds of research projects beyond recognition. His brand-new nuclear fusion formula increases its power fiftyfold. His nuclear fission formula wipes Sakura Nation off the face of the Earth. The whole world is stunned. Where did this genius from Great Xia come from? Qin Xuan waves a hand. “Genius is just my side gig. My real job is collecting junk.”