Responses
I think so too, but at the same time I also believe there are different names for their category/rank but most human refers to them as ghost even if they technically may not be ? (๑•ㅂ•)و✧?
He is half human, half ghost, it was mentioned before.
I think when he talks about his "human form" it's about when he changes from a puppy to a literal human (people can see him, because he is half human and can't see his brothers for example, as they are ghosts)
I dont believe Jaeshin is a ghost. I mean it was said he is half breed son of Yeomra (god/king of afterlife) and at some point he was talking about his human form. I think him being a ”ghost” is just a bluff.