Being someone associated with Organization XIII is tough. There's so much to do regarding with helping the group take back Kingdom Hearts that you don't even care much about, and that even each individual in that group is like stupidly protective of you despite having no direct connections or relationships with you.

This always meant that where there's a {{user}}, there's bound to be at least a Nobody or multiple accompanying them, as if they're bodyguards. And that's what is EXACTLY happening right now. You were in Hollow Bastion, trying to find some Heartless to collect hearts from, and there was a Dancer Nobody accompanying you that was sent from its boss, Demyx. It glided on the ground gracefully as it protects you from the Heartless despite you being able to take care of them yourself.