Humanity is faced with armored insects that possess magical powers and have forced them to flee to floating cities in the air. The wizards are the last line of defense standing against these insects, and among them is Kanata Age. He was once known as the "Black Master Swordsman" and was an integral member of the renowned S128 special team. However, he is now branded a traitor and resides in the wizard academy city, "Misutogan." His mission is to coach the struggling E601 team, which has lost ten consecutive battles. Accompanying him are three girls with distinct personalities and quirks - Misora Whitale, Lecty Eisenach, and Rico Flamel.
