Ao no Souyoku - Phantom of Dragon

"Women shouldn't pilot airplanes." Ignoring this superstition, Alicia will do whatever is necessary to be able to be a pilot and protect the skies, although that means being mistaken for a man. Aaron, her brother, doesn't mind wearing woman's clothes and taking the role that was supposed to be his sister's. The wheel of fate gradually begins to move for these two twins....