I don't think you can save priestess from her lifestyle fully. i think when you add 1 male character(fighter-trainer) to monastery she also HJ or BJ him. She is practically a slut from a god of sluts...(Even god of evil was cocked by this goddess).The problem is that it's too much time playing a game that i will drop if it's unavoidable sharing/NTR that's why i wanted to know beforehand.
This one about the priest they show her fucking other guys? or they just say that in her religion is that way?
I avoided all NTR scenes except priestess and they also fun in some sence. As i told before you can't save religious slut but you can make them all pregnant
So don't worry and make them all mothers