That was going to be an adventure to explain, but maybe Yuffie might understand some.

"Home? Please, don't play it up. It was a training facility and that's it. I never really had a 'home', at least not up until the Gundam Fight Finals." And she suspects that last bit went over her head.

"But it was cold, plain, tiny windows... At least the bed was soft..." she says, trying to say something more... descriptive about it.