An unknown planet.

from the outside, the surface of this planet is dark, which is a kind of darkness that makes people feel scared from the bottom of their hearts. Therefore, the image of this planet is compared to the dark devil star.

there are seven countries on the black magic star. However, just a hundred years ago, the biggest empire on the planet, the black magic Empire, defeated the other six empires in a year and unified the whole planet. Then two years later, the black magic empire began its war of aggression against other planets.

no one knows why the black magic Empire has become so powerful. It...