Chronicle of a Young Girl

June 1923 in the unified calendar. A young girl with blond hair and blue eyes, Tanya Degurechaff, is training in the final course of the Imperial Military Academy at the third patrol line in the Northern Military District, the Norden Theater, as part of her service to the force. The training that took the first step towards a glorious career as an aviation mage ended without incident - that's how it should have been. But things took a turn beyond expectations. Taking the cross-border invasion of the Alliance as an opportunity, the Empire and the Alliance entered a state of war. With the transition to a wartime system, Tanya is assigned an observation mission, but a surprise attack by the Allied Forces forces Tanya into a situation where she has to fight alone against the enemy's magister squadron. The enemy is outnumbered and we cannot even contain the enemy before our troops arrive. However, if she escapes, she will inevitably face the death penalty of fleeing in front of the enemy. She faces this desperate situation. In order to survive no matter what, and do the best to deal with the higher-ups, Tanya used a certain strategy... "That's a monster in the skin of a young girl——."