I do not think that Namine is Kairi's Nobody. Well this is why.
In Secret Ansem Report Nr. 3, Ansem the Wise talks about how his 5 apprentices Even, Ienzo, Braig, Dilan and Aeleus has become Nobodies and created Organisation XIII together with Ansem, Seeker of Darkness a.k.a. Xehanort. Well, if you read about the 6 first characters in the Organisation these are the names:
(take away the X in the name)
Xemnas = Ansem, seeker of darkness
Vexen = Even
Zexion = Ienzo
Xigbar = Braig
Xaldin = Dilan
Lexaeus = Aeleus
Then, also:
Roxas = Sora
But...Namine? Kairi? Wtf.
In Secret Ansem Report Nr. 3, Ansem the Wise talks about how his 5 apprentices Even, Ienzo, Braig, Dilan and Aeleus has become Nobodies and created Organisation XIII together with Ansem, Seeker of Darkness a.k.a. Xehanort. Well, if you read about the 6 first characters in the Organisation these are the names:
(take away the X in the name)
Xemnas = Ansem, seeker of darkness
Vexen = Even
Zexion = Ienzo
Xigbar = Braig
Xaldin = Dilan
Lexaeus = Aeleus
Then, also:
Roxas = Sora
But...Namine? Kairi? Wtf.