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'.
Yumi stared at Johan with fiery eyes, her face filled with curiosity and a hint of annoyance. "Johan, I have so many complaints for you!" she exclaimed, while Takeshi stood beside her with an equally curious expression. "How on earth did you manage to fly a fighter jet in a place like this? It makes no sense!"
Yumi continued enthusiastically, explaining how the fighter jet was capable of vertical take-off, a highly advanced technology that didn't require a long runway. "Imagine, a giant machine can hover like a bird without needing to run along the ground! How is that even possible here?"
Takeshi, who had been listening attentively all this time, finally added, "And how on earth did you manage to fly that fighter jet, Johan? As far as I know, you've never undergone flight training, let alone piloted something so complex."