They work in business. [ Simply put. Though when she looks at him, it's just with curiosity rather than anything else, she doesn't seem to notice any change in his expression. ]

Anyway, just go upstairs, I'll go make some tea real quick. It's the first door on the left.

[ And just as expected, her room is also rather spacious. There's a large bed, and a desk for a computer. Hell, there's couches, too! Of course, the computer's already on... at least it's not on an embarrassing website, although if he opens a new tab, he might be able to see her browsing history.

Full of H doujins. ]