Luna

Not a lot is known about Luna, as They were created when a strange human(?) girl by the named of Danique summoned Them out of the blue. Danique named Them Luna, and Luna has been sticking with this girl ever since.

Luna doesn't speak it seems; Just odd humming and whimpering noises through bubbly drips of Their goopy "mouth" 

But They seem to very gentle-hearted and rather protective of Danique, as if she were Their own child. And although They seem to be disapproving of Danique's recent ludicrous decisions, They do not try to stop her and rather do Their best to keep her safe instead. 

Even if that means being quite defensive around a shady Ink Demon.