[Okay that gets him to pause for a moment, setting down a box he'd been about to put away and kind of looking at Fuyuhiko like he's a big pink elephant or something. It seems like the idea of asking before hand never actually crossed his mind.

Likely the same with asking his roommate first.]

...I stand by the fact that it won't cause any hassle. If I really must have a word with the owner concerning this then fine, that's what I'll do. But...

[He really never considered the fact that the heir might not be okay with him owning animals.]

Does this arrangement bother you?