Dansou no Hametsu Seijonanoni Kyuukoku Kishi ga Amayakashite kuru

Akurei—better known as Akira—was born as the only being possessing the holy power of the Saintess. Fearing that, just like in past wars, a Saintess might once again become the spark of conflict, Akira’s parents raised her to live as a boy. Now at eighteen, Akira sets off to study abroad in a neighboring country. She wishes only for a calm, peaceful, and uneventful school life… but before long, she somehow catches the attention of three captains of the Holy Knight Order— “We want you to join our knight order.”