I Got Caught Working a Summer Job. Where Did You Get That J-20?

Chen Hao, an engineer from Blue Star, transmigrates into the body of a college junior. To help cover his living expenses, he takes a summer job at a junkyard and awakens the [Starry Sky Technology] System.

A few days later, a group of armed police officers surrounds the junkyard where he works.

"Where did you get this fighter jet? Are you working with foreign arms dealers? Tell us the truth!"

"Officer, I really did build it myself out of scrap car parts... Look, see for yourself..."

"Why not just say it's a spaceship that can fly into outer space?" the police chief says scornfully.

"That would be a little difficult." Chen Hao thinks seriously for five seconds. "It'll cost extra."

The experts: "???????"