Bishoujo Soroi no Eirei ni Sodaterareta Ore ga Jinrui no Kirifuda ni Natta Ken

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!