Hayme01

A high-schooler who loves playing FPS games were reincarnated in the fantasy world. And usually, those who were isekaid were blessed with overpowered magic and a legendary beast. However, our main character is different. 

Instead of those things, he awakened a shop system where he could purchase American freedom! And since modern guns is as good as magic, he decided to make full use of this ability and make a name for himself in this new world.

Fireball? Cute. My M203 grenade launcher makes a bigger boom.
Summoned beast? That’s nice, I’ve got a UAV with thermal optics.
You can split oceans with magic? Cool. I can erase cities with a nuke.

Whatever overpowered spell you’ve got, I’ve got something better.

I Have a Military Shop Tab in Fantasy World

It started with the soft scrape of boots across wet ground—barely audible, almost part of the wind. Then came the creak of old wood shifting. Somewhere beyond the collapsed buildings, something moved. Not fast. Not loud. Just there. Watching. Waiting.

Inside the ruined house, Inigo sat upright with his shotgun resting across his lap. He hadn't slept. Neither had Arienne, who sat cross-legged near the table, her hand hovering over the tracefinder. Its glow had intensified slightly, pulsing like a heartbeat.

Korrik stood by the door with his axe drawn, peering through a crack in the wood. "They're not gone."

"No," Inigo said quietly. "Just hiding again."

The others gathered in silence. Lyra was nursing a scrape on her shoulder. Garen had a fresh dent in his pauldron but nothing serious. No one had died, but they all knew how close it was.

So They Can Summon Using That Huh?