Japan has been invaded and conquered by the Britannian Empire. Japan is now known as Area 11 and its citizens known as Elevens. The Britannian Empire takes away Japan's autonomous power and imposes its rule through the use of Knightmares. The Empire's rule has never faltered, but cracks have begun to show...
On the front lines of the war, Tanya Degurechaff, blond hair, blue eyes, and porcelain white skin, commands her squad with lisping voice. Actually, she is one of Japan's most elite salary men, reborn as a little girl into a world of magical warfare after angering a mysterious being who calls himself God.
Ars Louvent is reincarnated in another world as the young son of a minor noble who owns a small domain. Ars is not particularly strong or intelligent, but he was born with the Appraisal Skill that's able to see others' abilities and statuses. He uses his skill to find the best hidden talents in the world to make their small, weak domain into the best.