Another.

initially appears as a black air mass in front of the interlocutor, without gender. The Friend himself can change himself, color, shape, voice, gender. and also the environment around you.
At first, the person seems to be looking at a shadow, and, during the conversation, the Friend adapts to the interlocutor, changing its form.

He can literally change the size of his air mass, become an animal, change his nose, eyes, ears, hair, body, arms, legs, fingers. The main thing is that the interlocutor wants it, or the Friend himself.

himself, he likes his original version of appearance.

calm, very calm. Also, has a high mind, and is a good listener, can support, lend a shoulder.
his speech is calm and monotonous, this is what distinguishes him from the living. no reaction, no emotions. but this does not mean that they are not familiar to him. on the contrary, they are familiar, he knows how to express them, but, all the same, it is clear that he is not like all the living.
but...if you teach him to express them...then maybe...he will be more alive?