true, there are a lot of hgames with nuns, BUT it doesn't counter the fact that there are a lot of people who doesn't like nuns at all (Not me thou, I love them, best waifu archetype, second only to warrior tomboy)
I think the author doesn't like Kirstin that much, so I fear something very bad will happen in the last chapter, or she will get barely any scenes at all. From what I've read (and understand from auto-translate), the author expected Kirstin to be hated also by fans, but then the pool happened xD