[quote=@Fractured]
<Snipped quote by Vacare>

The goddess of fertility has a say when it comes to Noct's form?
[/quote]

Like I said, dead people need special circumstances to even stay in our world, either that or they're reborn. So, Noct here probably pissed off the Goddess and the Goddess punished him to roam as an familiar for the foreseeable future. It's not like he can't get another body, it's just really hard to make one.