According to historical records, the Mu continent is a mysterious continent floating in the sky above the earth's surface.
The Mu continent has an environment that is completely different from the Earth, a variety of strange animals and plants, and there are also extremely ferocious "native species". As a result, humans did not attempt to land on the Mu continent until they were about to enter the 21st century.
However, humans did not succeed.
In addition to "native species", there are actually things that have never been thought of before on the Mu continent.
A girl who controls weapons.
As if they were the guardians of the Mu continent, humans called them "girl weapons".
