Mirja Kitora (木寅ミルヤ Kitora Miruya?) is a half-Japanese half-Scandinavian second-year high school student of Ayanokouji Martial Arts School. Her okatana is Jikkyuu Mitsutada.

Miruya is a commander figure who shows great ability in analyzing situations and devising the most suitable strategies in combat. She is also a cool beauty whose devotion serves as a sharp contrast to her duties.

It is easy to assume that she is an aloof character, but actually isn't the type of person who dislikes others. In reality, she is an unmatched katana otaku who knows a Toji's signature traits from memory and will talk about it with sparkling eyes when it becomes the topic.