Diamkey

A kind guy, sometimes rude and has managed to make enemies, but remains kind to his friends and helps when possible.
The boy has short white hair with a black streak in his bangs. He wears black eyes and square glasses. His skin is almost black, with the darker, rotten part of his left hand also having small black horns and a devil's tail. He wears a white shirt with a brown sweater torn at the forearms, black baggy pants, a wide belt, and black sneakers.
A 20-year-old guy, 180 cm tall. Nicknames: Justik, Damn, Just. (Often addressed as Just, Justik.)

A sweet, talkative guy who's willing to help if he can. He has gray hair that reaches his waist and is tied in a ponytail. He has scarlet eyes and rectangular glasses with red lenses. He has rather pale skin due to his vampire race and long red nails that resemble claws. He wears a white shirt with a red vest over it, black trousers held up by a thick belt, and brown boots with not-so-high heels. He's 25 years old and 170 cm tall.
They call him a key, a cranberry, a priest, or simply a vampire. (Most often, they call him a key and Diamkey.)