In a world where humanity resides in floating cities due to the threat of colossal magical armored insects, wizards from prestigious academies battle these deadly creatures. Kanata Age, once celebrated as the 'Black Master Swordsman' now deemed a traitor, receives an opportunity for redemption. Tasked with guiding the troubled team E601, comprising Misora Whitale, Lecty Eisenach, and Rico Flamel, each harboring personal struggles, Kanata finds himself entangled in their intricate web of challenges and dangers.