Being a book lover, Luna has always wished that if there was a next life, she would be transmigrated to one of the genres she loves to read about. It was just a wish though, but who would have thought it would happen so soon?! Reverse Harem - Check! Super handsome and hot men - Check! Being rich and pretty - Check! But are there really no take backs for a seemingly perfect life?
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'.