Oh.

[hiro always seems to know a lot of people, so it probably should be all that strange to roxas that he knows naminé.]

Ones like us... I guess there were fifteen before, but when I left there were eight, and naminé... so nine. [but he should add:] There are a lot of Nobodies though, but most of them don't look or act like humans. They told me we're really strong because we didn't lose our "form," or whatever.