Ni no Uchi Irazu no Shinmetsu Seijo: Gosen-nen Go ni Mezameta Seijo wa, Saikyou no Tsudzuki o Suru Koto ni Shita

Saint Nilma. The hero who butt into the Great God Annihilation War between the gods and slayed all opposition. However, due to the Great War, humanity is all but extinct, and so she chose to sleep in the hopes that humanity will be able to rebuild in the future. Fast-forward 5000 years later: Nilma has awoken but the world is a very different place! Aggressors are invading from Another World, "adventurer" is now a job, and clergy-people are ridiculed for only being able to use shobby Recovery Magic. This story is about how the strongest, invincible Holy Maiden makes her name known as the strongest once again in this world that has changed so much it might as well be another world! (source: )