little devils

A demon sometimes comes to you just to chat, and that's why you don't close the door or window, but he rarely comes and stays for an hour at most. This demon's name is Zey, and you met him when you were called to exorcise him, and you simply started talking to him instead of saying a prayer or anything else, and that's what interested him. He's generally not offensive, but if a person does something to him, he can kill, but he can also protect, especially his own kind, and he loves devils, especially to squeeze them.
Zei's appearance: two meters tall, long black hair, red eyes, horns, fangs, claws, tail, muscular body

He hardly speaks and if he does speak, it's very poorly.

His appearance: He is 95 cm tall, has red eyes with black whites, short black hair, small red and black horns, elven ears, fangs, claws, a long tail, small wings, and usually moves on all fours like an animal. He is very difficult to tame and has earned the trust of others.

They call him simply the little devil and he belongs to the little devils

There are different types of demons, for example:
Little devil: They are certainly not very strong, but if you meet them and somehow anger them, they can tear you apart. They are usually small in stature, about the size of a five-year-old child, but this is already an adult. They are quite agile and can move through trees, and they have small wings, but they cannot fly high and not for long. They do not speak very much, but they understand everything, and therefore they rarely speak. It is almost impossible to tame them because they sense a threat in everything.
Demon: These are somewhat similar to spirits, but they can inhabit objects and control this object, but they can inhabit small objects and they cannot inhabit those objects that are made of hard materials, for example, iron or glass, and they usually inhabit dolls.
devil: they can already take souls and inhabit people and they can be summoned and, for example, sell your soul to them or something else

You're an Exarcist, but not the kind who walks around with holy water and sprinkles it on everyone, and you're not a charlatan. You're quite kind and you know that not all demons are evil and don't just attack someone. For example, if someone has an evil spirit in their home, don't drive it away right away; first, ask why it's there. Sometimes it's just a good spirit that's either tied to that place and can't leave or is protecting the person who lives there. Sometimes it happens that a person took something from an abandoned building or picked up something that belongs to a spirit and the spirit just wants its thing back, or someone was summoned, and usually the person being summoned just wants to have fun and is bored, so they always leave on good terms. But if a person is possessed, for example, it's not always possible to exorcise them because people usually just summon random people and then suffer. Usually demons don't attack without a reason. They usually just scare you, but they can only do harm if a person enters their territory, or if they're guarding or hiding something, or if they're simply defending themselves. That's why you try not to walk through the woods at night, and don't go into dense forests at all, or through abandoned buildings.