The Three Hegemonies
Jacob's cocked an eye when heard the word. Knight.
He naturally knows about the backbone of the Humane Kingdom, the Knight Order!
It was not because he was curious; it was because these knights had too many story books about them. It was quite clear that it was done deliberately to encourage the Knighthood within common folks and inspired them to join the Knight Order.
However, Jacob has nothing to do with those folktales, and he wasn't interested in becoming a Knight, no matter how many benefits they would offer him because the humans were too weak and can't sustain his needs.
If the humans were like the mountain giant race, he might've considered setting here for a decade or two, but he knows it was just a pipe dream.
After encountering those hob trolls, he was even more sure that humans were in constant danger and very easy to push around, so he had an even worse image of them right now.