Tale of the Sword Saint Beginning with Zero Attack Power

Read manga Tale of the Sword Saint Beginning with Zero Attack Power manga/攻撃力ゼロから始める剣聖譚 /Kougekiryoku Zero Kara Hajimeru Kenseitan
While Eugene was blessed with an extraordinary talent for defensive magic, on the other hand, he had no aptitude for offensive magic. Ridiculed as incompetent by those around him, he enrolled in a magic academy to run away. However, there, his “useless” defensive magic was highly valued, and astonishingly, he was appointed as the caretaker of the beautiful Demon Queen, Erynyes, who once ruled the world—!?
桁外れの防御魔法の才能には恵まれる一方、攻撃魔法の才能は皆無だったユージン。彼は周囲から無能と揶揄され、逃げるように魔法学園へと入学する。だが、そこでは「役立たず」であった防御魔法が重宝され、あろうことか、かつて世界を統べた美しき魔王・エリーニュスのお世話係を任されてしまい――!?