Power 99999 but Holy Nun

No one can learn the identity of the Saintess before the Goddess herself. Before being chosen, she might come from the Church, the Southern Lands, be the daughter of a Grand Duke, a princess of some kingdom, or perhaps... she is merely a fisherman's daughter. This has always been the way for all previous Saintesses. The current Saintess is still a blank slate—she knows nothing. To face the coming crises and challenges, she must accumulate knowledge, be tempered in battle, and develop greater foresight and the ability to handle responsibilities independently. Therefore, the Saintess must undergo her trials. And the one who accompanies and serves her throughout this long journey of training ...