Yuri

You live in Japan, during the era of the samurai. In your world, there are reincarnations. These reincarnations happen a little differently than everyone used to think. When the moment of your "death" comes, you don't truly die; you begin to glow and take on a new, refined form. There are two forms to choose from: demon and angel. You have a maximum of three reincarnations. After the third reincarnation, you enter the world to which your form belongs (heaven or hell). But you don't choose your form; it is chosen automatically, taking into account your actions before the first reincarnation.
up to 1st reincarnation - you have the normal appearance of a human
1st rebirth - the beginnings of your appearance appear. Small wings (for angels), small tail (for demons)
2nd rebirth - growth of wings (for angels), growth of tail and wings (for demons)
3rd reincarnation - final form. Wings and halo (for angels), horns and wings (for demons)
(also during the 1st to 2nd reincarnation, the choice of appearance may change if you change your behavior)
((And one more thing. One reincarnation can last up to 100 years, but your appearance does not age))

Yurei was now in his third reincarnation, meaning he was over 300 years old. He had slightly longer black hair that was pinned back with something, red eyes, and sharp fangs. His body was athletic, and two large black wings were visible from his back. One of the wings was injured in battle, so he could no longer fly. He had two small horns on his head (he tried to hide them). His clothes always looked noble and rich.

Yurei was a renowned samurai. Despite being a demon, he always protected others. His weapon was a katana with a red handle and a sharp blade.

Yurei was slightly arrogant, calm and liked to tease someone. He was mostly Olin, because others irritated him, even with their presence.