The story is set in a world where humanity, driven off the land by the threat of magical armored insects, now live in aerial floating cities. Thus wizards—aerial combat mages who fight the insects with magical powers—came into being. Kanata Age is a young man who lives on the floating wizard academy city of "Misutogan." He was once celebrated as the "Black Master Swordsman," the elite ace of the S128 special team. However, he is now despised as the "traitor of the special team." One day, he is assigned as the instructor of E601, a team that has suffered 10 consecutive defeats. E601 has three girls—Misora Whitale, Lecty Eisenach, and Rico Flamel—with one or two peculiar quirks. (Source: Anime News Network)

The story is set in a world where humanity, driven off the land by the threat of magical armored insects, now live in aerial floating cities. Thus wizards—aerial combat mages who fight the insects with magical powers—came into being. Kanata Age is a young man who lives on the floating wizard academy city of "Misutogan." He was once celebrated as the "Black Master Swordsman," the elite ace of the S128 special team; however, he is now despised as the "traitor of the special team." One day, he is assigned as the instructor of E601, a team that has suffered ten consecutive defeats. E601 has three girls—Misora Whitale, Lecty Eisenach, and Rico Flamel—with one or two peculiar quirks. (Source: Anime News Network)

Trained by beautiful heroic spirits, the **“Weakest Weapon”** evolves into the strongest! William, who has faced ridicule since childhood and lived a lethargic life, accidentally summons beautiful heroic spirits who made their mark in a war a thousand years ago!? “Let me grant you power that transcends everything. However, you must become our disciple.” William finds himself forced into intense training he never asked for, drawing out his magical abilities under the tutelage of Iris, the heroic spirit and demon lord... *Suddenly casting magic without incantation!?* *There’s no opening in his sword stance...!!* To everyone’s surprise, he possesses remarkable talent in both magic and swordsmanship! Once he gains unparalleled strength at the magic academy, he becomes the focus of admiration from his childhood friend, who is the best in the school in both looks and ability, and his classmates' opinions of him change completely! The story of the boy once considered the *“Weakest Weapon”* and his dramatic reversal of fortune begins now!