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'.
Since that fateful day, Johan's life had become an unending labyrinth of gloom. His father, once a protector and role model, had now turned into a dark shadow, crushing every hope Johan held. Every word from his father's lips was a sharp knife, stabbing Johan's heart, as if his very existence was a curse. His father's gaze was cold and filled with hatred, as if Johan were an unwanted parasite gnawing away at their lives. That stare pierced directly into young Johan's soul, leaving scars that never truly healed.