War of Resistance: Have I Become a Great Power? No, I Hunt Great Powers!

A retired soldier transmigrates to the years of the War of Resistance and opens a department store. It has everything, from daily necessities to weapons and equipment! “Want a gun? How about a Q1 grenade sniper rifle!” “Who says a 35mm caliber can’t be a gun? It can kill with a single shot, so it’s definitely a sniper rifle!” “Want artillery? We’ve got guerrilla rockets. They can be fired from a launcher, or you can just light them up and fire them without one!” “The best part is, they’re tough and built to last, dear!” “We’ve got tanks, too!” “From a distance, the turret looks terrifying; up close, it’s just five pairs of road wheels.” “Who says a 155mm smoothbore gun can’t be a tank gun? Bigger is better!” “This much firepower isn’t nearly enough! Not nearly enough!”