The premise is pure escapism: floating cities, magical armor, bugs the size of buildings. Kanata is a disgraced ace forced to rebuild his reputation from nothing, which means every small victory actually lands because he has nothing left to lose. The ecchi is frequent enough to feel intentional rather than apologetic. What makes this work is that the show genuinely cares about the core fantasy, aerial combat with magical systems that have weight, even when it's being silly about everything else. You're not watching this for narrative depth or character complexity. You're watching because the idea of sky-based magic combat never gets old, and this show understands that better than it understands restraint.
Humanity clings to survival in floating cities, hunted from the ground by swarms of magical insects. The only defense comes from aerial combat mages, wizards who duel these creatures in the sky. Kanata Age was once their greatest warrior, a legendary swordsman whose reputation crumbled when he became branded a traitor to his elite squad. Now stripped of glory, Kanata accepts an assignment nobody else wants: training E601, a combat team that has lost every single match. His new charges are three mismatched girls, each carrying their own baggage and combat quirks. The team is fractured, demoralized, and seemingly hopeless. Yet Kanata sees something others miss. Rebuilding these three girls into actual fighters means confronting his own past failures and learning whether redemption is possible. Magic, aerial warfare, and high-stakes tournaments unfold as this ragtag unit fights to prove they belong in the sky. It's action-packed training arcs mixed with character growth, where broken people attempt to become something greater together.