Failure Frame: I Became the Strongest and Annihilated Everything With Low-Level Spells (Light Novel) Vol. 6

BORN OF REVENGE In search of the Country at the End of the Word and its secrets of forbidden magic, Mimori Touka plunges back into the Land of the Golden-Eyed Monsters. But on the way he’s confronted by perilous new foes: the descendants of previous heroes from another world! The E-class underdog must flex his “useless” skills in a battle against their Sword of Courage and leader, the indominable Lewin Seale.
Series Overview: Mimori Touka and his classmates are abruptly catapulted into a fantasy world, summoned by the world’s resident goddess to serve as heroes. The good news? Most of the students display amazing skills upon arrival! The bad? Mimori is the worst of the lot, bottoming out at a measly E-rank. Incensed, the goddess tosses him in a dungeon to die–but, it turns out, Mimori’s skills aren’t so much worthless as they are abnormal. Abnormally powerful, perhaps!