When the average Japanese salaryman is suddenly thrown into in a world wracked with warfare and hardship by a supernatural power, they might first think to hide or run away. But not Tanya Degurechaff. A calc...

High above the blood- and mud-soaked trenches, a young girl pits herself against army mages in high-stakes aerial duels with bullets, spells, and bayonets. Her name is Tanya Degurechaff and she is the Devil ...