"I know why you're here, Riku... You came to erase me."

[Yannis]

Hmm.. Nobodies are outcasts, because they have no heart where light and dark could be in. Darkness can still affect them. They are just bodies with spirit, but darkness can swallow them very easily.

What if Ven is a replica!? xD No, im serious. I played FM+, the Vexen -fight.. He collects data of Sora all the time in the fight. Replicas arent real person, because they are based on someone who is real. This way the replica is a shadow of the person and is forced to destroy the real one to become the real one itself.

But what if Ven is replica whose data is taken out of nowhere? This way he could never be real. Unless! He could become part of something that is real and therefore he himself would be real as well.

I dont know how Ven would be replica of no one. That would make the story very interesting, when he would truly be a nobody. Ven could be entirely fake! He is not based on any real person and his memories would be fake. WOuldnt he want to be erased?

Just theorizing with only a little sense xD