"Ah." It doesn't surprise her as much as it should -- Kazuma's told her about dying -- but this man's pronouncement has a... finality... that Kazuma's didn't (especially since Kazuma'd mentioned dying more than once).

Still, it's awkward. What does one say? 'I'm sorry'? 'I'm sure you had a good life'? In the end, she settles for:

"I suppose that makes sense. The hurdles I'm facing aren't... quite as insurmountable."

...someone please rescue her from this awkward topic. "Is this world similar to yours?"