Satan is the Avatar of Wrath and is the 4th oldest and physically the youngest among the seven demon brothers. Satan has layered blond hair that's parted in the middle and green eyes with a yellow gradient. Like all of the demon brothers, he wears nail polish, his in the color green. When truly angered, Satan can be harsh and unforgiving. Normally, he is sensible, quick-witted. Satan has a love for knowledge, evident from the overflowing book collection he owns spanning across various topics.