I Sold Arms, but a Level Nine Civilization Broke Its Defenses

Qin Hao traveled through the star sea world and obtained the game panel. As more and more experience was required for upgrading, Qin Hao began to display his professional characteristics and embarked on a journey of selling homemade weapons. As long as the weapon he made is used by others to kill lives, he can gain a lot of experience while lying down. But... Surface civilization: "Obviously I just want to buy controllable nuclear fusion materials and enter the interstellar society, but Mr. Qin Hao, what do you mean by selling me a Star Destroyer?" Stellar System Civilization: "Obviously I just want to buy a star gate that connects multiple star systems, but Commander Qin Army, what do you mean by selling me an antimatter annihilation weapon?" Galaxy Civilization: "Obviously I just want to buy a hyperspace engine and explore the star sea for tens of millions of light years, but what do you mean, Chairman Qin, by selling me a black hole-armed space station equipped with a hyperspace engine?" Just as Qin Hao is preparing to sell cosmological constant-modifying weapons and causality weapons... Super Star Territory Civilization: "President Qin, can you please show your noble hand and let this hard-won peace in the star sea go!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.