[quote=@Raineh Daze]
It could communicate if it actually wanted to talk to you. It's an asshole, so it doesn't. Plus: canon part of the ending. It's an undead monstrosity that is also basically a pet.
[/quote]

So basically, One of Many is an undead monstrosity kept as a pet, who is capable of conversing but chooses not to, and is invisible most of the time.
Meanwhile, Yoshika is an undead monstrosity kept as a pet, who is capable of conversing and occasionally does so, and is visible all the time.
But Yoshika shouldn't be allowed?