Tale of the Sword Saint Beginning with Zero Attack PowerKougekiryoku Zero Kara Hajimeru Kenseitan; 攻撃力ゼロから始める剣聖譚; Zero Damage Sword Saint: I Enrolled in a Magic School and Wound Up in a Contract with the Demon Queen; The Master Swordman's Story Starts with the Zero Ability to Attack; Câu chuyện của Kiếm sĩ vô năng trên con đường trở thành Thánh Kiếm

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—!?