Failure Frame: I Became the Strongest and Annihilated Everything With Low-Level Spells (Light Novel) Vol. 4

Summary

While Mimori's journey for revenge takes him all over this magical, dangerous world, his classmates are fulfilling their destinies as heroes by facing off against the hordes of the Demon King. Despite the cruel world she's found herself in, S-class hero and ex-class rep Sogou Ayaka still wants to protect her weaker classmates - from their enemies, and from the cruel whims of the Goddess. But when it's just her up against an army of monsters, can she even save herself?