Ni no Uchi Irazu no Kami Metsu Seijo〜 Go sen-nen-go ni Mezameta Seijo wa, Saikyou no Tsudzuki o Suru Koto ni Shita 〜

Saint wakes up 5000 years later where adventuring is now a job, clerics are treated as idiots who can only use healing magic, and the Mazurka faith (idk why the author chose the name of a Polish dance) is now only a minor religion. Story of the saint continuing to be the strongest and trying to revive her religion.