Not only does Karin completely terrify Evil ("She doesn't have fingers under her armor, only more wands"), but there's plenty of other gems to be had too. A noblewoman who's a little too eager to be used for Louise "dark lusts", a half-incubus woman who radiates enough masculinity to make lumberjacks feel inadequate, and Louise being approached by multiple groups looking for "someone in a black robe sitting in the corner" while waiting for her contact.
I love this story. It perfectly captures both Louise and the minions not to mention builds a world that just sounds awesome to live in. If your not convinced here's this: Karin is Chuck Norris to Evil