Neither. They are fluid beings that change depending on the requirements of their surroundings. Basically they are just dudes with no clue but they have the lil angel and demon floating around their head, giving them ideas about what to do.
omg can someone give me the link to that comic? its the cutest loveliest comic Ive ever seen 💕 Id try to find it where I first saw it but it was r/196 I think so the title was likely "rule" so yeh x3