Hmm...do you think this is what they mean by 'swimmer's build', Ena?

[Like always, strange thoughts drift in and out of Azusa's head. She follows Ena's eye when she glances around the room, catching on. Ah, maybe they don't like being compared to fish...]

I think they have an underwater castle or two. Their king has seven daughters, and they all live in the same place. That's what I remember, at least.