Failure Frame: I Became the Strongest and Annihilated Everything with Low-Level Spells (Light Novel) Vol. 7

FORBIDDEN MAGIC FOR TOTAL REVENGE

After defeating the Sword of Courage, Mimori Touka finally arrives in the Country at the End of the World. Forbidden Magic is finally within his grasp--and it's strong enough to break through the defenses surrounding the Goddess Vicius so that Touka can take his long-awaited revenge! But the Country at the End of the World has its own problems on the horizon: the strongest knights of Alion are about to invade. Can anyone stand against them?