Failure Frame: I Became the Strongest and Annihilated Everything With Low-Level Spells (Light Novel) Vol. 11

THE GATHERING STORM Having defeated Kirihara Takuto and recruited S-class hero Takao Hijiri and her younger sister Itsuki, Mimori Touka is finally ready to march on Alion. Vicius, meanwhile, has procured the heart of the Demon King. As the combined forces of the Lord of the Flies Brigade, the Empire of Mira, and the Country at the End of the World advance on the goddess’s seat of power, she races to destroy the Realm of the Divines.
Can the resistance stop her before she gains enough power to slaughter both mortals and her fellow divines? Or is it already too late?
Series Overview: Abruptly catapulted into a fantasy world, Mimori Touka and his classmates have been summoned by the world’s resident Goddess to serve as heroes.
Luckily, most of the students display amazing skills upon arrival—except for Mimori, whose abilities bottom out at a measly E-rank. With no further use for him, the Goddess banishes Mimori to a dungeon from which no one has ever returned alive. Yet, as it turns out, Mimori’s skills aren’t so much worthless as they are abnormal .
Abnormally powerful , even. If Mimori can only claw his way back to the surface, nothing will stand in his way from getting revenge.