You Sent Me Down the Mountain to Sell Medicine, but I Built a Spaceplane

[Urban fantasy + sci-fi + feel-good power fantasy + cutting-edge technology] Blue Star's first true spaceplane has arrived, and it was built by a private company from the Eastern Great Nation. It flies all over Blue Star so often that even the Americans are afraid to send planes to intercept it. Not that they don't want to, but they've already had over a hundred F-37 fighter jets shot down, and their coffers are nearly empty. Most importantly, the spaceplane is equipped with the most advanced electromagnetic and laser cannons, and it's powered by controlled nuclear fusion, so it can keep flying forever. Who could put up with that?