Well, my theory about Xion is that she was born from Sora's memories and Kairi's heart(I forgot my own theory there. xD;, I got that by the Days trailer in which Namine is talking to DiZ about restoring Sora's memories and that she could be affected as well, meaning Xion. So if Aqua is related to Xion, and Xion to Sora and Kairi, then Aqua is related to Sora and Kairi? D: /phail