Battle Uniform JK

Ten years ago, an unknown existence known as the "Black Shadow" was discovered and infected the world like a virus in just a few months. This year has since become the first year of the Black Shadow Calendar. In one year of the Black Shadow Calendar, countries around the world reached an agreement and confirmed that the Black Shadow is a major crisis that humans need to face and deal with together. Since then, the war against the Black Shadow has begun. Ten years after the Black Shadow Calendar, the Black Shadow has occupied 75% of the earth's surface, and humans are forced to eke out an ignoble existence in the few remaining areas. In order to resist the invasion of the shadows, high walls were built in each of the five areas with open space in Asia, Europe, North and South America, and Africa, called "battle lines." The end of the war is far away and human resources are scarce. Finally, young boys and girls have to take up arms and go to the battlefield...