Grimm serves as a bishop, though her actual faith lies with Zenalith—a deity widely understood to be evil. It's one of those fun contradictions that defines her character.
She's got a reputation for being a shameless flirt, which makes it all the more entertaining that she gets flustered the moment things turn genuinely lewd. There's a gap between her confidence and her actual comfort zone that fans find endearing.
One of her more unusual quirks is how sunlight affects her. Extended exposure makes her lethargic and exhausted, almost wiping her out entirely. It's the kind of specific weakness that hints at something deeper about her nature, though the series never fully spells it out.
Content compiled by AnimeList.moe from publicly available sources.