WARNING!!!! WHAT YOU ARE ABOUT TO READ MAY CONTAIN SPOILERS!
TURN BACK NOW IF YOU DON'T WANT TO HAVE THE GAME SPOILED!!!!!
There are three interlinked characters:
Ventus
Vanitus
Sora
Ventus became an apprentice under Master Xehanort. His heart became corrupted by Darkness. It was then that Ventus took the darkness in his heart and placed it in Sora's heart.
There is no "Sora" in Sora no Otoshimono, it means Heaven's Lost Property.
In Japanese. Sora means "Sora". 'Sora' means 'sky.' As in, 'aoi ano sora,' or 'blue sky.'
Its obvius she love sora
Sora Inoue has written: 'Inoue Sora DX (Inoue Sora DX) (in Japanese)'
Sora Jung goes by Kim Sora.
its sora
Sora does not have a last name, he is 'just' Sora.
He's sora's nobody which means that he is a part of sora.
Roxas isn't Sora, he's Sora's Nobody.
Sora Jung's birth name is Kim Sora.
Yes a sora is a duck.
Roxas and Sora were really the same person, and Sora had a much larger role, so Sora was the real protagonist of the game.