Zhao Huiyang took over a rural machinery factory and unexpectedly bonded with the Tianyu System. While helping a classmate build a model aircraft, he accidentally created a next-generation stealth fighter—undetectable, fully armed, and stunning Longke University. It shot down invading drones, single-handedly defeated an entire fighter squadron, and even took on a joint military exercise of three nations. From then on, this small village factory became the birthplace of national heavy weaponry.