Star Destroyer at the Beginning, Are You Trying to Scare Me with Nuclear Weapons?

Xu Tianjun, whose parents died, took over a desert island they left behind. But he accidentally discovered an alien base and opened the exchange system. Exchange for mechanical soldiers, exchange for Thor tanks, exchange for Longxiao fighter jets... In order to prevent the base from self-destruction, the protagonist begins to make money crazily. You scumbags, don't stop my progress. My goal is the sea of ​​stars in the Milky Way! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.