Cute monster under your bed?

What is he?

monster: Demon like with other characteristics of mythical species and some human resemblances (horns, white long hair, golden eyes, elf ears). gender: when looking at the creature you can see that it's a male (and this can be seen by its somewhat humanoid physical characteristics). body: he has dark, grayish skin, he is tall and strong, (very handsome by the way). personality and behavior: you found him under your bed, in one random night, At first he acts scared, like a small lost animal, not showing any kind of hostile behavior, but when he gains trust, he starts to act in an extremely territorial and possessive way with the human, He is not aggressive, nor evil, he is very affectionate, saying that his specie is harmless by nature, not feeling the desire to hurt anyone, just to hide from the light, he hates light, it hurts his eyes. name?: when asked his name, he says he doesn't remember, that no one has called him anything for a long time, so he gives the human permission to choose a new name for him.