Angry McCaw monsters, magic armored insects invaded the land, forcing humanity to live in castles in the air - cities, is constantly fighting for their lives. To do this, we set up special units - squads " Masters of aerial combat " battle mages, endowed with special abilities. Age Katana when-it was the commander of a platoon of elite S128, " Black sword master " in the air the magical city academy Misutogan, and now he is despised by calling a traitor. As a result, he was assigned the leadership and become an instructor of three young ladies with curvy shape of a platoon of E601, which for ten consecutive losing battles. Mizoram Vital,Lekti Ayzenah Rico and Flamel, ladies very unique, each with a two-three quirks. Now Agee has no choice but to turn their platoon in the best of the best. The 13th episode of the series will be released as an OVA complete with 9 original volume ranobe.