[ She seems to get the gist of it, smiling peacefully with a small incline of her head. Well, she's much the same. She'd floundered upon her arrival and so many strangers had reached out helping hands. How could she even dream about not returning the favor when given the opportunity? ]

The '-san' is an honorific. It's respectful... a lot like saying "Miss Kisara", for example. I'm a little too used to saying it, so it doesn't bother me.