EDIT: Okay, the theory is officially dead. BBS completely disproves it. D8
Well, since there have been rumors going around that Lea and Isa lived in Radiant Garden (same place that Kairi lived before she went to Destiny Island!), I think that it might be possible that they knew Kairi.
It would explain why Axel wanted to help Nami in Re:Com, and why he told Sora that Kairi was in the castle dungeon in KH2 (though he might have only done the latter out of remorse...).
EDIT: Okay, the theory is officially dead. BBS completely disproves it. D8
Well, since there have been rumors going around that Lea and Isa lived in Radiant Garden (same place that Kairi lived before she went to Destiny Island!), I think that it might be possible that they knew Kairi.
It would explain why Axel wanted to help Nami in Re:Com, and why he told Sora that Kairi was in the castle dungeon in KH2 (though he might have only done the latter out of remorse...).
DISCUSS