Caught Working a Summer Job: You Sold a Fishing Rod to Someone Who Can't Catch Fish?

[No System + Pure, Unrestrained Thrills + Live-Streaming a Badass + Invincible and All-Round Talents + Patriotism] Yang Dong wakes up to find that he has transmigrated into a college student and taken over his family's materials factory. After returning from summer vacation, he's getting ready to head to class when a group of fully armed police officers suddenly storms into the school. “Is this saltwater fishing rod of yours for guys who never catch anything?” Yang Dong replies, “Of course! I designed it specifically for guys who never catch anything!” Who could have guessed that a fishing rod would solve the problem of the aircraft material that had left the country at the mercy of the United States? A few days later, the air force arrives at his factory, dressed in sky-blue uniforms. Yang Dong is stunned! “You... you're really the air force? Wait... how did my fishing rod become a strategic resource?” From then on, Yang Dong sets off on a journey from industry into military production... I modify my drone into a bomber and send it to the Middle East! I sell some paint that turns out to be stealth coating for fighter jets, and the military requisitions it and keeps it under wraps! I convert steel pipes for civilian use into the cheapest intercontinental missiles and precisely strike the island nation's war shrine! There's nothing I can't do, if you can think of it. You're saying I'm selling strategic resources? No, I started out selling fishing rods!