Gunjin Shoujo, Seiritsu Mahou Gakuen ni Senyuu Suru Koto ni Narimashita.: Otome Game? Sonna no Kiitemasen kedo?

Using the memories of her previous life, Raze has made a name for herself as an elite soldier of the Cyan Empire at the age of 15. Her next mission, as ordered by her boss, the devilish Prime Minister, is to go undercover at the Central Imperial Academy of Magic as a student, and watch over sons and...

Source: MyAnimeList