Johan Anderson, a high school teenager in Japan, along with his classmates, is suddenly summoned to another world by an empire that needs a hero to win the war. Each student gets a job that determines their abilities, but Johan gets a job that seems strange and useless: 'Modern Soldier'.
Under the piercing cold wind, twelve second-class soldiers meticulously prepared their war gear. They donned combat attire designed for optimal protection while allowing good mobility. Their weapons, ranging from sharp military knives to well-maintained crossbows, were carefully arranged. Although firearms were not yet in use due to inadequate supply, their spirit and readiness were undiminished.
Each soldier rechecked their equipment, ensuring every part functioned perfectly. They helped each other tighten the armor straps, load arrows into crossbows, and sharpen their blades to the keenest edge. No one underestimated the importance of this preparation; every step was part of a well-thought-out strategy.