The dominant religion in Nui-ta is something called Stalari. Stalari is indigenous to the nation, but has evolved and modernized overtime. The primary emphasis is not on the gods, but on duty and good works. Also, there is no heaven or hell in Stalari: you get reincarnated until you live a good enough life to escape the cycle of life completely and be at total peace (think Hinduism or Buddhism).
Men and women can be clergy within this religion, with equal rights and responsibilities. There are two types of clergy, priests/priestesses, and monks/nuns.
The distinction between the two is that a priest reaches out to the community (leads worship in the temples, counsels people, manages orphanages and other good works that directly involve people), while a monk is more cloistered (makes goods for charity work away from the private eye, counsels people if they are sought out, maintains temples when the public isn't around...)
This is what a typical Stalari priest or priestess dresses like:


And this is what a monk or a nun dress like:


















