Izushiro (Author)

100 years ago, demons suddenly appeared and attacked humanity. At that time, normal weapons could not even scratch demons which caused the human population to decrease drastically. In order to protect themselves, humanity merged into seven countries. They managed to halt the demon’s invasion by their army implementing and using magic, but even now they…

Hundreds of years ago demons appeared suddenly and started attacking humans.At the time Humans couldn’t even put a scratch on them with normal weapons,The humans built seven countries to prevent their race from being extinct, and suceeded in hindering the demons by diverting their magic technology to the military but the battle against the demons…