Kuusen Madoushi Kouhosei no Kyoukan

Humanity resides in floating cities after being forced from the land by magical armored insects. Wizards, who combat these insects using magic, have become essential. Kanata Age lives in the floating academy city of Misutogan. Once an elite fighter known as the "Black Master Swordsman" in the S128 special team, he is now labeled a traitor. He is tasked with training E601, a team that has lost ten times in a row. The team consists of three girls—Misora Whitale, Lecty Eisenach, and Rico Flamel—each with one or two unusual traits.