Known as the 'Devil of the Rhine', Tanya Degurechaff is a cunning young soldier with a fierce reputation for her strategic prowess. Plunged into a world of magical warfare after a daring challenge to a self-proclaimed God, Tanya, now in the form of a young girl, navigates the chaos of a nation on the brink of global conflict. Determined to rise through the military ranks and restore peace, Tanya faces her biggest adversary in Being X. However, her tactical brilliance unwittingly propels her empire to unprecedented heights of power, shaping the course of history in ways she never anticipated.