Koschei

"Koschei...? As in the Rayek of Death?"

- Akitsek Koschei is the Rayek of Death and is the most powerful of the Seven Rayek of Calamity and of all the Rayek in general.

Appearance
As he is a Kamui, he is as inhumanely handsome as all the Kamui are.

He dresses in white, which is the traditional colour for funerals. Not only are his clothes white, but his hair is also white (which is the norm for Kamui) and his skin tone is the palest.

He is very youthful looking, appearing as a human in his early twenties, with long, loose white hair that slightly hoods his disquieting black eyes, that have been noted upon quite a few times to be quite "evil looking."

Personality
Koschei is pretty friendly and cheery, liking to hang around Darya and is one of the few people who takes no offence to her cold attitude. Blushes a lot even for no reason, like being nervous, angry or surprised by a sudden noise. Sometimes he even blushes while taking souls and then blushes because of that.

He is also described as apathetic, showing no interest in things such as politics, factional strife and power plays, though in his defence, Kamui do not have the same emotions that humans have.

However, he is very loyal to the peoples he cares about, such as Darya, and is willing to get involved in the War of the First Realm for her.

He does not get angry very often and one of the only times he did was when Darya killed another Kamui, and was punished by being cast down to the second Realm.

Darya
Darya and Koschei have known each other for a long time. Though Darya doesn't consider Koschei a friend, treating him more as an annoyance, Koschei calls Darya his closest friend and declares them, "platonic life partners."

They sometimes act like an old-married-couple. Koschei is one of the few people who takes zero offence to Darya’s aloofness and snark.

Makhai
When Makhai first became a Nekhii Spirit after dying due to heavenly influence, Koschei was the one to explain his situation and recommended Darya to take him in as a familiar. He treats Makhai kindly and helps him out from time to time.

Trivia

 * Koschei is the only Kamui with no familiars. Not that he's unsociable or an introvert by any means, he just has no need for one.