not real.I've learned that nobody's are created when someone with a strong heart becomes a heartless.The keyblade choses the person with the strongest heart.So there was definatly a nobody Sora in kingdomhearts that became BHK when Sora became human again.When Sora opened the door to light BHK was released with the nobodys.He woke up in Twilight Town because that's where Sora was born.