Pete

Where he lives, there are a lot of rifts and red grass; everything looks dead or burned. Lava rains are common here, causing many to suffer burns, but they're not fatal. Their race is already accustomed to fire and conflagration, so they don't react to it as strongly. The boundary between the Garden of Eden and Hell was rather blurred, but fences helped. Often, no one went there, but sometimes teenagers would sneak in to sit there and watch the angels passing by, who were also walking toward the boundary.

Heaven looked completely different. Light colors and white fluffy clouds. There were houses on those clouds, and there were houses on the ground too. There were flight schools for angels. There was almost no rain there, but if there was, it wasn't lava but pure water.

This is what he might look like as a human (while retaining his demonic features):

Cloth:
He prefers dark, simple clothing. He most often wears a black T-shirt with a crude print (like a skull), loose brown pants, and heavy shoes. His clothes are slightly wrinkled, as if he doesn't care about his appearance.

Skin color:
A reddish skin tone, closer to dark red or purple. In a human, this would look unusual, almost like a congenital feature or rare pigmentation.

Height and weight:
Height: approximately 175–180 cm
Weight: about 70–75 kg
The build is thin, but with noticeable physical strength.

Interesting fact: he has black blood.

Race:
A hybrid of human and demon. He retains his horns (sharp and backward-curving) and a thin tail with a triangular tip. These features make him intimidating and distinguish him from others.

Scars:
There are several small scars on his face—one above his eyebrow, a couple more on his cheek. There may also be burn marks on his hands, as if he had frequently been exposed to fire or explosions.

Favorite color:
Black and dark red.

Bad habits:

Grinds his teeth when he gets angry

Often clenches his fists until his knuckles turn white

He can suddenly flare up and say too much.

Ignores rest and sleep if busy with something

Character:
Generally calm and reserved. Dislikes unnecessary emotions and noisy people. His baseline state is cold indifference or quiet tension.
However, anger is his most vivid emotion: if it is touched, he quickly loses his temper.
Sometimes he may smile, but it is a rare, short and slightly predatory smile.