Kaze no Kishihime

A girl named Kalina aspires to join the elite Mage Guards, a group that does not accept women. To pursue her goal, she disguises herself as a boy named Kalin. After an argument with a nobleman called Centurion turns into a duel, she is taken in as an apprentice. However, Centurion becomes both her commanding officer and her roommate. The challenge now is for Kalina to keep her identity secret while working toward her dream of becoming a knight.