With Blue Star at Your Back, Kill with the Bright Sword!

Wang Ye accidentally traveled to the world of Liangjian. Obtained a cross-border arms dealer system. Seeing the difficulties and obstacles faced by his ancestors in the war, Wang Ye decided to lend a helping hand without hesitation. Guns, cannons, tanks, airplanes... Please don't be polite, ancestors, these are old items that can only gather dust in our place. "Lord of War? Well, you can call me that!" "But please add a prefix in front of it, it's for killing Japanese invaders——"