User blog comment:Gojira57/Future Monster based Demon Character(s) for Monster Hunter Hurricurse 5, and future fan fictions..../@comment-15446856-20160129111204/@comment-4732465-20160129175155

I am sure there are Fanon Monsters that will fit the Demon status, but I am currently concentrating on basing the demon on Canon monsters, or perhaps make it a hybrid between two or more canon monsters.

But anyways, I do agree that Osutogaroa could fit the demon status.