About Vampire: The Masquerade – Redemption

The protagonist joined a crusade for religious reasons even if this motive faded. He is in love with a Christian (Benedictine) nun (of which order?) who definitely values her religion and wants to keep her vows (which was not a given in the 12th century). This nun also values prayer. The protagonist also has religious vows that he clings to. Christian religion has a significant role in the story. Though the game ending greatly depends on the protagonist's conduct, this mechanic is has nothing to do with any real-world faith or religion, it is more of an constructed system of virtue unique to the game.