One day, an unknown blue spherical life form suddenly appeared in the world, causing harm to humanity. Large and medium-sized spheres can harm people, while small spheres can attack people. In a crisis situation, high school students across the country received military training and were organized into military reserves, starting to fight with guns in various regions of the country. Reserve soldiers
One day, an unknown blue spherical life form suddenly appeared in the world, causing harm to humanity. Large and medium-sized spheres can harm people, while small spheres can attack people. In a crisis situation, high school students across the country received military training and were organized into military reserves, starting to fight with guns in various regions of the country. Reserve soldiers