There Are Mages Per Capita, the System Wants Me to Sell Guns?

[Illustrations] [Multiple female protagonists are slowly gaining popularity] [Nobles + Knights + Magic] [Business + Territory Management] [Light Novel] [Full of Benefits] [From Satisfied with your appearance: +40%] [From the beginning of love and curiosity about men of the same age: +10%] [From expectations for subsequent interactions: +40%] Lu Yusheng's face was filled with black lines as he looked at the composition of trading intentions in the trading auxiliary panel. I just want to get rich, why do you all think about these things? Lu Yusheng, a great profiteer in his previous life, died for some reason and traveled through three years. However, he was so poor that he was named by a female knight and was unable to make a fortune. And the system that awakened late actually allowed him to sell guns and ammunition in this magical world where everyone has unique spells?