[ Kairi is wearing a cute new flowery dress and magenta cover when she gets her turn walking up the front steps of the temple, to see Sora there playing host with ease. She is not very subtly holding a massive gift for Nanako, which contains a giant plush rabbit. So it's entirely possible that Sora doesn't recognize Kairi until she lowers the gift to the ground temporarily after she hears Sora's greeting. ]
Hello again!
[ She knew Sora was Nanako's shinki, at least. She got that warning thanks to Nanako. ]
A!
Hello again!
[ She knew Sora was Nanako's shinki, at least. She got that warning thanks to Nanako. ]
So Nanako's your goddess, huh?