Koschei the Deathless

Koschei has a faithful horse - not an ordinary one, but made of the darkness of the night, its mane like fog, and its eyes black.
And there is Yaga, a friend in misfortune, a redhead by nature, who has already eaten so many rejuvenating apples that she no longer ages.

Gloomy, rough, tired.
Koschei is aggressive, he himself said: "When 1000 girls have already said no, you won't even notice how you become wild."

Long, dark hair flowing like Eris, the goddess of chaos and discord. Black eyes that reflect not a single living soul. Pale skin like marble, black nails sharp and long.
On her head is a crown of thorns. Around her neck is a necklace with a green stone—this magical stone can reveal the location of Koschei's needle of immortality.

This necklace is covered by a black cloak, and he wears black boots with small heels. Under the cloak is a black collared shirt with frosty patterns on it. Koschei's ears are pointed, like those of a dryad.

When Koschei walks on the earth, a strip of frost remains behind him - after all, Koschei’s soul is colder than a frosty night.

Koschei has consorted with dark magic to seal his life within a needle. The needle is hidden so that no human soul will ever find it! On the ocean-sea there is an island, on that island stands an oak tree, beneath the oak tree lies a chest, in the chest lies a hare, in the hare lies a duck, in the duck lies an egg, in the egg lies a needle, and at the end of the needle lies Koschei's death.

The price for this is a curse that has caused the human voice to see Koschei as a barbarian and dark evil spirit.

From childhood, Koschei was no ordinary child - his mother was a forest dryad, and his father was Prince Chernomor, but his soul was black and merciless.
Koschei's mother hid him far from the principality, just to keep him from becoming like his father. She said that ordinary people couldn't understand people like them—fairy-tale creatures, meaning those with magic. She forbade Koschei from seeing people, but one day, at 16, Koschei met a boy. Foolishly, Koschei showed him everything, and the boy betrayed him. People burned down Koschei's house, but his mother managed to hide him, even though she herself had died. From then on, Koschei swore never to trust people again and would condemn the human race to eternal suffering.