Asdark13

One day I found myself in a strange forest.....
I had a strange terminal device like an i-pod in my hand, 
After that, a woman told me that the country was attacked simultaneously from land, sea, and air by a powerful neighbour called the Empire of Desnea and soon the war will be lost.
The protagonist decides he wants to save the country by using "modern weapons" summoned by his terminal.

“We will use modern weapons to fight this overwhelmingly unfavourable situation!”
And with that not only the military, but also the social infrastructure has grown to a state that is on par with the modern world.
The kingdom, now a superpower, begins to strike back at the Desnea Empire.

Table of Harem King with modern weapons

Table of contents

Volume 1