She is a deeply faithful, serious, and kind clergywoman who set out to explore ruins infested with monsters in order to become a full-fledged sister. However, a powerless woman alone cannot stand against monsters that act purely on instinct... Her limbs are restrained and her pure, untouched secret place is stirred deep inside!? 'I-It feels so gooood! I don't need God or anything anymore!' The noble clergywoman's form gradually melts away, and in its place appears the face of a female greedily devouring pleasure. Continuously violated without rest by tentacle monsters and barbaric villagers, what is the fate of the sister